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Escudo de San José de Maipo

San José de Maipo

Región Metropolitana de SantiagoFounded 179219.519 inhabitantsPoblación proyectada INE 20244.986 km² of area4 inh./km²$9.363M ingreso municipalSINIM · ingreso total percibido · 2025
Profile today2050
The comuna in context · among 346 comunas
Education
4%
16th highest school dropout
Explore
Livability
36.9/100
16th least liveable in the country
Explore
Environment
56 species in conservation status
20th most documented threatened species
Explore
Population
+12%
Population would grow between now and 2050
Society
24,4%
Multidimensional poverty · 63rd highest of 346
Finance
$480 thousand
per inhabitant per year · rank 196 of 346
Education
4,01%
School dropout rate · 16th highest in the country
Education
574 pts
around the national median in the PAES (576,9 pts)
Finance
283rd
most dependent on the Common Fund of 340
Summary

What the comuna hasSource: OpenStreetMap

16 Schools
15 Squares and green areas
7 Fire stations
6 Health centers
6 Rodeo arenas (medialunas)
4 Kindergartens
3 Carabineros
2 Libraries
1 Pharmacies
1 Hospitals

San José de Maipo es una comuna de la Provincia de Cordillera, Región Metropolitana de Santiago, Chile. Situada en el Valle del Maipo Alto; su capital provincial es la ciudad de Puente Alto.

Introductory text from Wikipedia, bajo licencia CC BY-SA.

Liveability index · EIU style

36.9 /100
Ver el ranking y simular
#331 of 346 · most liveable in the country (EIU weighting)
Safety27
Health42
Culture and environment55
Education28
Infrastructure26
AuthoritiesWho leads the comuna, its council, sessions and lobbying requests

Mayor · 2024-2028Source: DecideChile · SERVEL

Roberto Pérez C.
CONTIGO CHILE MEJOR · PARTIDO RADICAL DE CHILE
6.133
votes (49.24%)
16.130
Electoral roll
86,98%
Turnout
Mayoral history · 7 terms
RP
Roberto Pérez C.
2024-2028 · PARTIDO RADICAL DE CHILE
6.133
votes
RU
Roberto Ulises Perez Catalan
2021-2024 · PR
3.940
votes
LP
Luis Pezoa Alvarez
2008-2012 · RN
2.485
votes
VC
Víctor Cáceres Riquelme
2004-2008 · PS
2.857
votes
ML
Miguel Luis Marquez Olivares
2000-2004 · RN
2.259
votes
VC
Victor Caceres Riquelme
1996-2000 · PS
1.885
votes
VC
Victor Caceres Riquelme
1992-1996 · PS
1.287
votes

SERVEL · TRICEL (1992-2008) · DecideChile (2024) · Wikidata (pre-1992)

Concejo MunicipalSource: DecideChile · SERVEL

MB
Maite Birke A.
POR CHILE, SEGUIMOS · PARTIDO COMUNISTA DE CHILE
822
votes
LV
Luis Vargas S.
CHILE MUCHO MEJOR · PARTIDO SOCIALISTA DE CHILE
766
votes
DT
Diego Trincado H.
POR CHILE, SEGUIMOS · FRENTE AMPLIO
754
votes
CB
Camila Barahona R.
TU COMUNA RADICAL · INDEPENDIENTE
726
votes
AP
Anthony Prior C.
TU COMUNA RADICAL · INDEPENDIENTE
690
votes
CG
Constanza Gonzalez G.
CHILE VAMOS UDI-EVOPOLI E INDEPENDIENTES · INDEPENDIENTE
464
votes

Official council minutesSource: CPLT · Active Transparency inventory (Law 20.285)

Este municipio no publica actas del concejo en su Transparencia Activa (obligación de la Ley 20.285); sus sesiones pueden estar solo en video.

Comptroller auditsSource: CGR · Municipal Observatory

Findingstotal
135
Highly complex
19
Audit reports
6
YearFindingsAltam.Compl.Median.Reports
20202051051
201928210162
2017163851
2016179621
20155420331

CGR severity classification · audit findings on the municipality and its corporations

Who requests meetings with the municipalitySource: InfoLobby · CPLT (Law 20,730)

  • CI
    Compañía Industrial el Volcán S.A.
    Lobby / interest management · 9 audiencias · 2023–2026
  • cd
    Comunidad de Aguas Canal Comunero
    Lobby / interest management · 8 audiencias · 2015–2021
  • Jd
    Junta de Vecinos N°8, el Esfuerzo
    Lobby / interest management · 7 audiencias · 2015–2019
  • CG
    Compañía General de Electricidad S.A.
    Lobby / interest management · 4 audiencias · 2018–2025
  • AG
    Aes Gener
    Lobby / interest management · 4 audiencias · 2015–2022
  • Ad
    Agrupación de Taxis
    Lobby / interest management · 3 audiencias · 2015–2026
  • CD
    Cuerpo de Bomberos San Jose de Maipo
    Lobby / interest management · 3 audiencias · 2016–2019
  • AM
    Alto Maipo SpA
    Lobby / interest management · 3 audiencias · 2015–2016
  • CG
    Compañía General de Electricidad Cge S.A.
    Lobby / interest management · 3 audiencias · 2016–2017
  • AC
    Asociación Comunal de Clubes de Huasos
    Lobby / interest management · 2 audiencias · 2016
  • CF
    Conjunto Folclórico Chagual
    Lobby / interest management · 2 audiencias · 2015–2016
  • Jd
    Junta de Vecinos Unión y Progreso, las Vertientes
    Lobby / interest management · 2 audiencias · 2017
  • ag
    Asociacion Gremial Camara de Turismo Cajon del Maipo
    Lobby / interest management · 2 audiencias · 2025–2026
  • cd
    Corp de Turismo Ecuestre los Arrieros del Cajon del Maipo
    Lobby / interest management · 2 audiencias · 2015–2017
  • U
    Usplat
    Lobby / interest management · 2 audiencias · 2025–2026
  • Jd
    Junta de Vecinos Melocotón Alto
    Lobby / interest management · 2 audiencias · 2017–2019
  • dg
    Direccion General del Credito Prendario
    Lobby / interest management · 2 audiencias · 2018–2017
  • FC
    Fundación Casa Ketrawe
    Lobby / interest management · 2 audiencias · 2018–2025
  • SI
    Sociedad Industrial Romeral S.A.
    Lobby / interest management · 2 audiencias · 2023–2024
  • LD
    Liga de Fútbol Cajón del Maipo
    Lobby / interest management · 2 audiencias · 2017–2019
and 106 more organizations that requested meetings

Organisations that registered Lobby Law meetings with this municipality. Registering the meeting is mandatory for the official, so the list shows who asked to be heard, not whether they got anything.

PopulationWho lives here, how they study, their healthcare and more

Population and living conditionsSource: INE · CENSO · MINEDUC · ADIS

Population trend

13.364
inhabitants
19.700
inhabitants
20022025

How it has changedSource: Official INE series 2002–2026 (2017 base).

See the full trajectory to 2050
Since 2002
+49%
inhabitants
Estimated population 2050
22.265
+5% vs. 2035 (21.113)
Over 60 · 2050
31,98%
25,06% in 2035 · +7 pts of ageing

INE projects comuna population only through 2035; the 2050 values are an own estimate by the monitor, anchored to the official INE 2050 national total (21,626,079 inhab, 32.1% aged 60+). Not an official comuna figure.

IndicatorValueSource
Homes with public water supply (2017 Census)71,99 %CENSO 2017 2017
School disengagement (leaves the system)1,7 %MINEDUC 2023
School enrollment154 studentsMINEDUC · aggregated by hexagons 2024
Municipal enrollment33,3 %MINEDUC · aggregated by hexagons 2024
PAES reading comprehension (DEMRE)574 ptsDEMRE · MINEDUC datos abiertos 2026
PAES mathematics M1 (DEMRE)585,2 ptsDEMRE · MINEDUC datos abiertos 2026
poblacion_censo17.441 inh.2024 Census 2024
Income poverty (CASEN 2022)4,7 %CASEN 2022 · SAE Observatorio MDSF 2022
Pobreza multidimensional (CASEN 2022)24,4 %CASEN 2022 · SAE Observatorio MDSF 2022
Indigenous peoples6,29 %2024 Census 2024

The PAES year is that of the admission process: the test is sat in November of the previous year. The average covers only those who registered to apply to university —not every secondary-school graduate— and groups them by the comuna of the school they graduated from, not by where the student lives. Here it rests on 194 students registered for the PAES.

Registro Social de Hogares

People in the RSH
16.099
8.925 households
Households in the most vulnerable 40%
4.730
53% of RSH households
Female-headed households
52%
4.674
Elderly (60+)3.70823%
Children and adolescents (<18)3.22720%
Foreign nationals5503%
Belonging to indigenous peoples7214%
People with moderate/severe dependency2081%
Single-person households4.73453%

A monthly administrative snapshot of the Social Household Registry (self-registration to access benefits), as of abril 2026. The "bracket 40" is the socioeconomic rating of the most vulnerable 40%. It is a registry, not a survey: it complements CASEN (biennial) with fresh data, but well-off comunas under-register. Source: ADIS, Ministry of Social Development and Family.

School educationSource: MINEDUC Open Data 2025

School enrollment
2.583
12 schools
Students per teacher
10,8
239 teachers
national median: 10,15
Average attendance
87,8%
national median: 89,8%
Priority studentsSEP
61,4%
socioeconomic vulnerability
national median: 66,8%
Where they study · by provider
Public (municipal + SLEP) 63%Private subsidized 37%
Pass rate
97,4%
national median: 98,2%
Dropoutschool withdrawal
4,01%
dropout during the year
national median: 1,77%

Aggregate of all the comuna's schools (RBD → comuna). Pass/withdrawal and attendance are from the 2025 school year. SIMCE is not published as open data (managed by the Quality Agency, by request only); the available quality proxy is passing, dropout and attendance. The PAES result appears in the social section.

Municipal healthcare (primary care)Source: SINIM · MINSAL / FONASA

CESFAM
0
Clinics
0
Rural health posts
3
FONASA enrollees
2.425
12% of the population
Doctors employed
2
Health staff by contract type
Permanent staff: 24Contract staff: 31Fee contracts: 10
Primary-care medical visits · per year
14.536
17.454
20102025
Medical specialties served · 2 in the comuna (public system)
Adult PsychiatryAdult Physical Medicine & Rehab

Specialties with services recorded at the comuna's public facilities (REM DEIS, 2024). These are services performed, not doctor headcount. Excludes the private network.

Comprehensive home visits · per year
663
715
20192025

REM-26 section A (DEIS/MINSAL): comprehensive family visits, summed across the comuna's facilities. The last year is partial while DEIS consolidates monthly reports.

Comuna's primary-care centers · FONASA 2025 enrollees (8.901 in total)
CenterTypeProvider typeEnrollees% brackets A-B
Hospital San José de MaipoHospitalHealth Service6.49758%
Posta de Salud Rural las VertientesRural Health Post (PSR)Municipal2.09755%
Posta de Salud Rural San GabrielRural Health Post (PSR)Municipal28358%
Posta de Salud Rural el VolcánRural Health Post (PSR)Municipal2467%

FONASA brackets A-B ≈ lowest incomes (A: without resources). Source: FONASA, as of Dec 31, 2025, DEIS code.

Costs · 2025
Health spending accrued: $748.890.000 ($308.821/enrollee)MINSAL per capita: $415.277.000Municipal contribution: $254.399.000

Indigenous peoplesSource: 2024 Census (INE) · CONADI via IDE SMA

Indigenous population
1.097
6.3% of the census population (Census 2024)
PeoplePeople% of total
Mapuche98289.5%

2024 Census: people who consider themselves as belonging to an indigenous people (small counts are suppressed for confidentiality at the source and not shown). Communities: CONADI national registry as of March 2024 — Araucanía and Los Lagos not refreshed in that update, the count is a floor. Land grants: 2022 registry.

Community organizationSource: RPJSFL Civil Registry (Law 20.500/19.418) · as of Jun 2026

Active neighborhood councils
19
Councils per 1,000 inhabitants
1.0
density of territorial organization
Non-profit organizations
413
the entire active civil fabric
Committees (water, housing, progress)
72
Social and aid
66
Sports
44
For the elderly
19
Cultural
18
Foundations and corporations
12
Trade associations and cooperatives
5
Fire brigades
2

All the comuna's active non-profit legal entities (Law 20.500 / 19.418), classified by organization name. It portrays the civil fabric: not just neighborhood councils, also committees, sports clubs, cultural and elderly groups, foundations and fire brigades.

5 Local media · 2 Comunitaria · 2 FM · 1 Digital pressSource: SUBTEL · broadcasting licences · Regional Media Survey (MSGG)

Local mediaTypedial
EESTILOFM94.9 FM
RCRADIO CAJONComunitaria105.9 FM
wwww.radiocajon.clDigital press
IEIglesia Evangelica y Misionera Rios de Agua Viva · holderComunitaria107.1 FM
RCRedcom Chile Ltda. · holderFM90.7 FM

The dial (frequency) of every FM, AM and community radio with a studio in the comuna (SUBTEL, active sound broadcasting concessions). National networks appear in their headquarters' comuna, not necessarily where they broadcast. When SUBTEL records no brand name, its holder (the concession holder).

Foreign-born populationSource: 2024 Census · INE

Foreign nationals
823
4,7% of the census population (Census 2024)
Main origin
Venezuela
347 people · 42% of the foreigners
Main countries of origin
347 Venezuela
115 Colombia
83 Argentina
44 Perú

International immigrants per the 2024 Census (people born outside Chile living in the comuna). Nationwide they are 1,608,650 people, 8.8% of the population.

Housing and housing deficitSource: MINVU (Encampment Registry + 2024 Census deficit + subsidies) · INE

Families in informal settlements
249
9 encampments (2024 Registry)
Housing deficit
410
6,4% of the comuna's households
Housing permits · 2024
8
1.334 m² · new construction
Subsidies Integrated System · DS01
29
paid · 2011–2025
Subsidies Solidarity Fund · DS49
414
beneficiaries · 2012–2023
Subsidies Rental · DS52
7
paid · 2014–2024

Encampments: MINVU National Registry 2024 (irregular settlements and the families living in them). Quantitative deficit: homes missing per the 2024 Census (doubling-up + unrecoverable overcrowding). Permits: new homes authorized by the Works Directorate in 2024 (INE) — measures future construction, not stock. Subsidies: MINVU by application comuna — DS49 accrues beneficiaries by resolution year; DS01 and DS52 accrue payments by application cohort (national totals in the source file differ ~1–6% from the comuna sum; the comuna series is published).

What the homes are like

13.062homes · by type (2017)
House
6.536 · 95.4%
House
6.130 · 98.7%
Shack/hut/shanty
204 · 3%
Other private
54 · 0.8%
Shack/improvised dwelling
34 · 0.5%
Other private
25 · 0.4%
Room in old house/tenement
24 · 0.4%
Apartment
23 · 0.3%
Apartment
15 · 0.2%
Room in old house/tenement
7 · 0.1%
Mobile
5 · 0.1%
Indigenous dwelling
4 · 0.1%
Mobile
1 · 0%
66%owner-occupied · tenure (2002)
Owned outright
2.049 · 58.4%
Provided for work
506 · 14.4%
Rented
383 · 10.9%
Free of charge
316 · 9%
Owned, being paid off
256 · 7.3%

Housing type: 2017 Census · tenure: 2002 Census (INE).

Elderly careSource: Chile Cuida · National Assets / SENAMA

Long-stay residencesELEAM
1
Beds
56
13,9 per 1,000 over-60s

Long-stay facilities for the elderly registered in Chile Cuida. Comunas without ELEAM send their elders to other comunas. With projected ageing (see Demographic projection), this capacity defines whether one can age in one's own comuna.

ResourcesBudget, spending, municipal procurement and more

Budget and revenue sourcesSource: SINIM · SUBDERE

Total revenue · 2025
$9.362.535.000
Own revenue
$3.907.598.000
42% of the total
Municipal Common Fund
$2.800.564.000
30% of the total
State transfers
$2.088.695.000
22% of the total
Ingreso total y desglose de ingresos propios

Total revenue · trend (2001–2025)

$1.305.116.000
$9.362.535.000
20012025

Own revenue breakdown (IPP) · 2025

25.3%
24.1%
11.9%
11.4%
27.4%
Property tax$987.033.000
Business licenses$940.066.000
Vehicle permits$463.213.000
Cleaning fees$446.216.000
Other own revenue$1.071.070.000
Special-law revenues · 2025
Mining licenses (Law 19.143): $404.581.000

Distributed by law to specific comunas; they arrive via transfers.

Revenue by sector · 2025
91.0%
7.3%
Municipal$9.362.535.000
Education$177.544.000
Health$748.889.000
Municipal Common Fund balance · 2025
Net recipient: it receives $1.987.489.000 more than it contributes.
Evolución por fuente de ingreso

Permanent own revenue (IPP) · trend

$536.735.000
$3.907.598.000
20012025

FCM received · trend

$396.061.000
$2.800.564.000
20012025

State transfers · trend

$198.351.000
$2.088.695.000
20012025

Municipal spending and budget executionSource: SINIM · SUBDERE

Current budget · 2025
$13.124.593.000
Accrued spending · 2025
$10.193.849.000
Execution rate
77.7%
Unexecuted: $2.930.744.000
Low execution: it only executed 77.7% of the budget — $2.930.744.000 unspent.

Accrued spending · trend

$1.318.519.000
$10.193.849.000
20012025

Distribution by management area · 2025

63.1%
36.5%
Internal management$6.431.139.000
Community services$3.723.039.000
Social programs$39.671.000

What the budget is spent on · 2025

Spending lineAmount% of spending
Municipal personnel · municipal wages and fees$3.691.661.00036.2%
Goods and services (operations) · supplies, contracts, maintenance$1.997.867.00019.6%
Transfers to health$1.941.824.00019.0%
Cleaning, garbage and landfills · waste collection and disposal$794.194.0007.8%
Municipal healthcare (primary care) · comuna health-sector spending$748.890.0007.3%
Transfers to education$561.024.0005.5%
Electricity (facilities)$327.660.0003.2%
Investment (works and projects)$211.497.0002.1%
Councillor stipends$74.030.0000.7%
Water (facilities)$59.949.0000.6%
Travel allowances$15.854.0000.2%
Street lighting$4.912.0000.0%
Commissions and representation$3.443.0000.0%

Share of total accrued spending. Lines overlap (personnel sits inside several areas), so they don't add to 100%. Source: SINIM.

Personal y dotación municipal

Spending composition · 2025

36.2%
19.6%
44.2%
Personnel (Subt. 21)$3.691.661.000
Goods and services (Subt. 22)$1.997.867.000
Others$4.504.321.000

Personnel by contract type · 2025

48.4%
29.9%
8.6%
7.7%
Permanent staff$2.057.086.000
Contract staff$1.268.098.000
Fee contracts$366.477.000
Labor Code$325.214.000
Community progs.$229.040.000

Municipal headcount · 2023

64.2%
35.8%
Permanent staff70
Contract staff39
Total: 109 staffWomen: 40.4%Professionalization: 31.2%
Cost/staffer permanent: $26.128.457/yearCost/staffer contract: $24.078.974/year

Municipal staff by contract status (SINIM, 2023). Cost per staffer = annual spending of the type ÷ same-year headcount.

Inversión, servicios básicos y obras

Investment and authorities' expenses · 2025

Municipal investment: $211.497.000 (2.1% of spending)Councillor stipends: $74.030.000Travel allowances: $15.854.000Commissions and representation: $3.443.000

Basic and general services · 2025

Garbage and landfills: $794.194.000Street lighting: $4.912.000Electricity: $327.660.000Water: $59.949.000

Final works approvals (DOM) · per year

250
23
20012025

Building permits issued · per year

65
26
20122025

Management indicator · 2025

Maintained green areas per inhabitant
4 m²/inh.
Security/patrol cars
0
Security/patrol bicycles
0
Surveillance cameras
4
Security/patrol pickups
2
Security booths
0
CESFAM in the comuna
0
Primary-care medical visits
17.454
Clinics
0
urban and rural
Dependence on the Municipal Common Fund
41,75%
of own revenue
Security drones
1
Permanent staff
57
Permanent own revenue
41,74%
of total revenue
Doctors employed
2
as of Dec 31
Security/patrol motorcycles
2
Building permits
26
Health staff
31
contract
Health staff
10
fee-based
Health staff
24
permanent
FONASA-enrolled population
2.425
municipal health
Rural health posts
3
Street-market stalls
70
Final works approvals
23

What it buys · Mercado PúblicoSource: ChileCompra · open data

Open profile in Monitor Mercado Público
Historic amount
$22.753.601.484
Purchase orders
11.207

Purchase-order amount · trend

$114.607.326
$664.881.255
20072026
Top suppliersAmountPOs
Ingenieria y Construccion Mtv SpA$6.998.578.5231
Abastible S.A.$1.237.548.153141
Harry Michael Prado Salinas, Obras Viales, E.I.R.L.$1.093.746.8813
Premium Home SpA$600.762.4274
Ronald Antonio Cortes Nuñez$502.427.4399
Copec S.A.$451.152.20089
Compania de Petroleos de Chile Copec S.A.$383.615.280113
Constructora Be & Asociados Ltda.$360.595.3079

Purchase mechanism · 2026

Tender $312.538.08147%
Agile Purchase $234.002.27935%
Framework Agreement $90.271.58014%
Direct award discretionary$28.069.3144%

Companies and economic activitySource: SII · company statistics and roster (domicile/HQ)

Registered companies
1.412
domiciled in the comuna
Dependent workers
3.918

Pyramid by sales bracket

58.4%
14.7%
25.0%
Micro (≤2,400 UF)825 companies
Small (≤25k UF)207 companies
Medium (≤100k UF)21 companies
Large (>100k UF)6 companies
No sales/no info353 companies

Largest companies domiciled in the comuna

CompanyLine of businessSales bracketWorkers
Inversiones Cachagua SpAACTIVIDADES FINANCIERAS Y DE SEGUROSLarge 4 (>1M UF)5
Inversiones Lk SpAACTIVIDADES FINANCIERAS Y DE SEGUROSLarge 4 (>1M UF)
Minera Lo Valdes LimitadaEXPLOTACION DE MINAS Y CANTERASLarge 210
Inversiones Volcan Internacional SpAACTIVIDADES FINANCIERAS Y DE SEGUROSLarge 2
Sociedad de Turismo Cascada de las Animas LimitadaACTIVIDADES DE ALOJAMIENTO Y DE SERVICIO DE CLarge 191
Benito Campos y Cia Ltda.COMERCIO AL POR MAYOR Y AL POR MENOR; REPARACLarge 180
Inversiones Caballito SpAACTIVIDADES DE ALOJAMIENTO Y DE SERVICIO DE CMedium 277
Hoteleria y Turismo Castellon y Piffaut SpAACTIVIDADES DE ALOJAMIENTO Y DE SERVICIO DE CMedium 252
Somev SpACONSTRUCCIONMedium 250
Ferreteria y Materiales de Construccion Comercio Ltda.COMERCIO AL POR MAYOR Y AL POR MENOR; REPARACMedium 243

SII roster of legal entities (public). Due to tax secrecy sales come in brackets, never amounts. The comuna is that of the domicile/HQ: operations may be elsewhere.

Investment in SEIA projects

Under review
2
US$ 59 M declared
Approved last 5 years
2
US$ 28 M declared
Construction jobsunder review
228
+ 226 in operations
Construction jobsapproved 5 yrs
148
peak labor
ProjectOwnerStatusInvestment (US$M)Constr. jobs
Planta Paneles de Yeso y Ampliación Cantera RubíEIAKnauf de Chile LimitadaUnder Review102389
Captación y Conducción Alternativa en el Río Maipo para Incrementar laEIAAguas Andinas S.A.Approved80428
Continuidad Operacional Mina de Yeso Romeral y Planta de ProcesamientoEIASociedad Industrial Romeral S.A.Under Review833
Estudio Geologico de RecursosDIATrimetals Mining Chile ScmApproved15

Investment DECLARED by the owner upon entering SEIA (not necessarily materialized; the RCA expires after 5 years without works). Multi-comuna projects: prorated investment, jobs counted in full. Jobs = declared peak labor (source PRISMA/SOFOFA). Source: e-SEIA + PRISMA.

TerritoryClimate, biodiversity, national heritage, SEIA-approved projects and more

Environment and air qualitySource: MMA · SINCA + PPDA + RETC

No air monitoring station (SINCA) in the comuna.

vigentemixtoMP2,5; MP10; O3
PPDA Región Metropolitana
DS 31/2017 · published 2017 · see plan

Zone with decontamination plan PPDA Region Metropolitana de Santiago · critical pollutant MP2.5 / MP10 / O3

Air emissions from industrial sources · tons/year (RETC 2020)
1 t MP10
1 t MP2,5
0 t SO₂

Air quality observed at MMA's SINCA stations within the comuna (2020); when there are several, the worst is shown. The scale compares the annual average with the WHO 2021 guideline (PM2.5 = 5 · PM10 = 15 µg/m³, international health reference) and the Chilean annual primary standard (PM2.5 = 20 · PM10 = 50 µg/m³): green within the WHO guideline, amber between guideline and standard, red above the national standard. "Days above standard" use the 24-h daily standard (PM2.5 = 50 · PM10 = 150 µg/m³). RETC emissions = declared point sources (industry/energy), excludes diffuse sources like residential firewood.

Biodiversity and protected areasSource: SNASPE · SEIA baselines

State protected wilderness areas (SNASPE) in the comuna
Rio ClarilloNational Reserve11.623 ha
El MoradoNational Park144 ha

Species of flora, fauna and funga documented in the baselines of the projects evaluated by SEIA in the comuna — what their environmental studies recorded in the territory. Conservation status (RCE/IUCN) and Chilean endemism are flagged.

260
Species
105
Flora
115
Fauna
40
Funga
84
In conservation status
65
Endemic to Chile
Species in conservation category
LagartijaLiolaemus moradoensisVUGuayacánPorlieria chilensisVULagartija de schröederLiolaemus schroederiVULagarto de lo valdésLiolaemus valdesianusVULagarto leopardoLiolaemus leopardinusENPejerrey chilenoBasilichthys australisVUSapo de monteAlsodes montanusENLagartija leopardo del ramónLiolaemus ramonensisVUGruñidor de el volcánPristidactylus volcanensisENAraña pollito, tarántulaEuathlus condoritoCRTarántula afín de santiagoEuathlus affinisENCnemalobus hirsutusENLagartija de gravenhorstLiolaemus gravenhorstiVUSapoAlsodes tumultuosusENSapo de ruloRhinella aruncoVUPalma chilena, palmera chilena, palmera de coquitos, palma de miel, palma de vino de chile, can – canJubaea chilensisENSetaCortinarius roblemaulicolaENMatuasto de darwin, lagarto de cola gruesaPhymaturus darwiniENPhyllopetalia altarensisENEscama gigante de palma chilenaPalmaspis jubaeCRMosco azul enanoCopestylum saphirinumVUPerca negraPercichthys melanopsVUCascarudo de peñaCallyntra penaiENBagre grandeNematogenys inermisENCascarudo de cantillanaCallyntra cantillanaENPochaCheirodon pisciculusVUTollo de agua dulceDiplomystes chilensisENOogenius penaiENQueuleGomortega keuleENPitaoPitavia punctataENBelloto del surBeilschmiedia berteroanaENRuilNothofagus alessandriiENBelloto del norte, belloto (genérico)Beilschmiedia miersiiVUMancapollo, pica pollo, borracho, borrachito, bueyApterodorcus tristisENGuanacoLama guanicoeVUZorro colorado, zorro culpeo, zorro coloradode tierra del fuego, zorro culpeo de tierra del fuegoLycalopex culpaeusVUBagrecitoTrichomycterus areolatusVUTarántula chilena rosada, araña pollitoGrammostola roseaVUGato montés andinoLeopardus jacobitaENLinguePersea lingueVUTricahueCyanoliseus patagonusENPuyeGalaxias maculatusVULiquen (genérico)Pseudocyphellaria bartlettiiENGüiñaLeopardus guignaVUAraucaria, pehuén, piñonero, pino piñonero, pino chileno, pino araucaria, pewen, guiliuAraucaria araucanaENAbejorro, abejorro colorado, moscardón, duillin, diwmeñ, abejorro gigante de la patagonia, don basilioBombus dahlbomiiENCaiquén, cauquén comúnChloephaga pictaVUPiuquén, piquén, guayataChloephaga melanopteraENYuncoPelecanoides garnotiiENMosco azul de los cáctusCopestylum azureumVUCiprés de cordillera, lenAustrocedrus chilensisVULiquenCanoparmelia austroamericanaENHongo oloroso, hongo ajo, ajo de duendeMarasmiellus alliiodorusCRMosco de escútelo rojo, mosco de los cáctus de escútelo rojoCopestylum rufoscutellareENMosco azul de cara roja, mosco de los cáctus de cara rojaCopestylum nigripesVUPinatra, pina, piña, curacuchaCyttaria berteroiENLagarto nítidoLiolaemus nitidusNTLagartija parda, lagartija de bellLiolaemus belliiNTFrangel, olivillo de la cordillera, pulpicaKageneckia angustifoliaNTSapo arrieroAlsodes nodosusNT
and 24 more

CR critically endangered · EN endangered · VU vulnerable · NT near threatened (Species Classification Regulation / IUCN). ★ endemic to Chile. Extracted from SEIA studies by kingdom; presence reflects what baselines characterized, not a census.

3 Wetlands · 3 urban · 2.718 haSource: National Wetlands Inventory · SIMBIO (MMA)

CodeWetlandHectares
HUR-13-01Sist. Rios Maipo- Mapocho, esteros Colina- Angostura- Puangue y Trib.urban1.900 /18.814
HUR-13-132Sistema de vegas andinas de la comuna de San Jose de Maipourban815
HUR-13-135Baños Moralesurban3

Area = hectares of wetland within the comuna boundary (apportioned using the DPA table of each record). For wetlands shared between comunas, "portion / total" is shown. "Urban" = urban wetland (HUR code). Official source migrated to the SBAP (Law 21,600).

Large projects approved by SEIASource: SEIA · approved projects

Projects with an environmental permit (RCA) approved by SEIA and declared investment above US$ 10 million, located in the comuna according to the case file and grouped by sector. Every sector with at least one project is listed: this is not a ranking or a selection. 11 projects totaling US$ 914 million, approved between 1997 and 2025. When a project spans several comunas, its investment is split among them.

Energy4 projects · US$ 747 M · 2001–2010
Alto Maipo SpAPROYECTO HIDROELÉCTRICO ALTO MAIPO Exp. N°105 · Gasoducto Gas Andes Extensión VI Región
Mining1 project · US$ 100 M · 1997
Fletcher Challenge Chile Industrial Ltda.Proyecto Minero Almira
Hydraulic Infrastructure3 projects · US$ 67 M · 2010–2025
Aguas Andinas S.A."Estanques de Reserva de Agua para Consumo Humano, Región Metropolitana" · Captación y Conducción Alternativa en el Río Maipo para Incrementar la Seguridad de Abastecimiento de Agua Potable para la Población
Others3 projects · US$ 0 M · 2011–2020
Enaex Servicios S.A.Ampliación de la Actividad de Transporte de Sustancias Peligrosas de ENAEX Servicios S.A. · TRANSPORTE Y LOGÍSTICA INTERREGIONAL DE CARGAS Y/O SUSTANCIAS PELIGROSAS

Approved is not the same as built or operating: the RCA authorises the project, but some were never carried out and others have since closed.

Source: projects with an RCA approved by SEIA (investment declared by the developer, split among the comunas the project spans). Under each sector are its two largest projects by investment. It is the best public proxy for large industrial sites; SERNAGEOMIN’s registry of active mining operations (by mineral and type of operation) is a layer not yet incorporated.

Basic utilitiesSource: SISS · CNE · MINEDUC

Distribuidora eléctrica
CGE
Empresa sanitaria (agua y alcantarillado)
Aguas Andinas
Higher education
No campus · nearest in Puente Alto at 37.6 km

Almost no comuna has its own utility: it is served by a major regional concession holder. Water = urban operational territory (SISS; rural goes via APR); electric = concession distributor per the tariff decree (CNE); higher education = university, IP and CFT campuses (MINEDUC/SIES), with the nearest comuna when there are none.

Environmental conflictsSource: SNIFA · SMA + Environmental Search · Environmental Courts

Appeals before the Environmental Courts

Appeals
1
on projects in the comuna
Case no.Parties / projectSubjectDecision
96002-2021
2TA
Birke Abaroa Maite / Superintendencia Del Medio Ambiente
Proyecto hidroelétrico alto maipo
SMA compliance programRejects

Appeals resolved by the Environmental Courts (Law 20.600) on the comuna's projects or facilities, geolocated by the associated project (SEIA) or sanctioned facility (SMA). Partial coverage: Supreme Court appeals and cases without a locatable act are excluded. Source: 1st Environmental Court's Environmental Search.

Green areasSource: SINIM · SUBDERE (2025)

Green space per capita
4 m²
40% of the CNDU standard
standard 10 m²

Municipally maintained green area per inhabitant (SINIM). The National Urban Development Council recommends a minimum of 10 m²/inhab (WHO, ~9). Self-reported by municipalities, with quality varying across comunas.

National heritageSource: National Monuments Council (Feb 2026)

National monuments
31
Historic monuments
27
Heritage zones
1
Nature sanctuaries
3

Monuments declared by decree (official CMN roster). Excludes archaeological and public monuments. Declaration entails legal protection and intervention restrictions.

Territorial burdensSource: SUBDERE (waste, Jun 2023) · Gendarmería (Jun 2025) · SISS (WWTP)

Infrastructure this comuna carries — often serving others.

FacilityTypeDetail
PTAS - SAN GABRIELPTAS · sin infoAGUAS DE COLINA
PTAS-SAN JOSE DE MAIPOPTAS · lodos activadosAGUAS ANDINAS S.A. · discharges into río maipo
Where this comuna's waste goes
Relleno Sanitario Santa Marta (Talagante) · 8.416 t/year

Official registries: they exclude illegal dumps and rural WWTPs (no consolidated public registry).

Forest firesSource: CONAF · Occurrence and damage statistics (2023-2024)

Wildfires · 2023-2024
7
Area affected
6 ha
mostly grassland
Cumulative last 5 seasons
1.316 ha
includes the 2022-2023 mega-season

Occurrence and area affected by wildfires (CONAF). The 5-season cumulative gives a fairer picture than a single year: fire is episodic and big catastrophes concentrate in few seasons. The area is comuna-wide, not just urban.

Winter riskSource: SENAPRED · winter critical points 2026 (via FAU U. de Chile)

Critical points registered
133
At high or very high risk
100
47 very high
Main threat
Deslizamiento/Derrumbe/Rodad…
Deslizamiento/Derrumbe/Rodado/Caída

Points in the comuna where SENAPRED identifies winter-rain risk (channel overflows, flooding, collector collapse, landslides, mudflows, snow), with risk level and the agency responsible for the fix.

Water scarcitySource: DGA · MOP (scarcity-zone decrees)

No scarcity decree in force today.
Years under decree since 2008
4
latest: 2022 · drought chronicity

DGA water-scarcity zone decrees (by comuna, province or region; basin decrees are not counted here, so chronicity is a floor). The decree enables extraordinary water redistribution measures. At the megadrought's peak (2021) 286 comunas were under decree; today 26.

Climate and climate changeSource: ARClim · MMA + CR2/UC (CMIP6 modeling)

Mean annual temperature
4,99°C
2035-2065 projection: +1,68°C
Annual precipitation
844 mm
projection: -2%
Hot days>30°C
0
projection: +1 days
Frost days
152

Modeled climatology (CMIP6 downscaling ~5 km): present ≈ 1980-2010, projection ≈ 2035-2065 middle scenario. Not recent weather observation.

SafetyCrime, road crashes and municipal security infrastructure

Crimes (police cases)Source: CEAD · Ministry of Public Security

Police cases · 2025
1.209
all crimes
Rate per 100,000 inhab.
6.194
Police cases · trend
1.052
1.209
20102025
By crime type · 2025
CrimeCasesRate/100k
Threats2331.194
Property damage1991.020
Domestic violence140717
Minor injuries87446
Alcohol and drug use in public spaces84430
Larceny73374
Burglary of an inhabited place63323
Motor vehicle theft54277
Theft of items from vehicles46236
Weapons-related crimes37190
Crimes and offenses under the arms law28143
Robbery with violence or intimidation22113

Showing the 12 crimes with most cases of 28.

Police cases (reports + arrests) recorded by Carabineros and PDI. Not victimization (ENUSC measures the real figure, higher due to underreporting). The rate uses INE 2024 population. Source: CEAD, Ministry of Public Security.

What the municipality does

Municipal security infrastructure and staff declared to SINIM (since 2016). Excludes Carabineros and PDI, which are national.

Surveillance cameras
4
Guards and inspectors
0
1 per 19.519 hab
Patrol fleet
4
cars, pickups, motorcycles, bikes
Patrol fleet by type
Pickups: 2Motorcycles: 2Drones: 1
Surveillance cameras · trend
6
4
20202025

Road crashesSource: CONASET · Data Observatory (2024)

Crashes · 2024
16
Deaths
5
25,6 per 100,000 inhab.
Injured
13
8 serious
Pedestrian collisions
2

Crashes georeferenced by CONASET (urban + highway) during 2024. The only per-comuna source; covers ~70% of the country's deaths (non-geolocatable ones are excluded), so it slightly underestimates the total. Pedestrian collision is the leading cause of pedestrian death.