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CA area data

Petrolia, CA

Petrolia, CA.

Population: 230 (Census ACS)

The median home value (Census ACS) in Petrolia, CA is $566,200. Homes sell for a median $727,500 after a median 149 days on market. 2 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Relatively High, with coastal flooding, earthquake, inland flooding the top-rated hazards. Cost of living is 10.7% above the US average (BEA, metro/state-level).

Backed by 25+ public sourcesFEMA · U.S. Census · NOAA · Dept. of Education · EPA · and more

$566,200

Median home value (Census)

149

Median days on market

Relatively High

Hazard risk (county)

Home values & appreciation

Median home value (Census)
$566,200
House Price Index (state)
423.4 (-0.3% YoY)

Sources: home value index (ZIP-level) · FHFA House Price Index (state-level)

Market activity

Median sale price
$727,500
Median list price
$487,500
Median price per sqft
$473
Median days on market
149 days
Homes sold (recent period)
4
Sale-to-list ratio
93.9%
Active listings
7

Source: recent area sales and market data (ZIP-level)

Rents

Studio fair-market rent
$1,122/mo
1BR fair-market rent
$1,188/mo
2BR fair-market rent
$1,554/mo
3BR fair-market rent
$2,152/mo
4BR fair-market rent
$2,597/mo

Sources: market rent index (ZIP-level) · HUD Fair Market Rents (metro/county-level, 40th-percentile regulatory reference)

Affordability

Cost of living index (High)
110.7 (100 = US avg)
Electricity rate (state-level)
32.5¢/kWh
Natural gas rate (state-level)
$22.00/MCF
30-year mortgage rate (national)
7.40%
15-year mortgage rate (national)
6.73%

Sources: BEA Regional Price Parities (metro/state-level) · EIA energy rates (state-level) · Freddie Mac PMMS (national)

Schools

Total schools
2
Elementary schools
1
Middle schools
0
High schools
1
Avg student-teacher ratio
9.7 : 1
Schools include
Mattole Triple Junction High, Mattole Elementary

Source: NCES school directory, 2024-25 (school-address-based)

Natural hazards & flood risk

Overall hazard risk (county)
Relatively High
Top hazards (county)
coastal flooding, earthquake, inland flooding, landslide, tsunami
Notable hazard ratings (county)
tsunami: Relatively High · landslide: Relatively High · earthquake: Relatively High · inland flooding: Relatively High · coastal flooding: Relatively High · drought: Relatively Moderate
Wildfire risk to homes (county)
Higher than 84% of US counties
Buildings in wildfire direct-exposure zone
47.4%
Radon potential (county)
Low radon potential — EPA Zone 3 of 3
EPA Superfund (NPL) sites within 5 mi
None
EPA recommends radon testing for every home regardless of zone.

Sources: FEMA National Risk Index (county-level) · FEMA NFIP flood-insurance claims (ZIP-level) · USDA Forest Service Wildfire Risk to Communities (county-level) · EPA radon zones + Superfund NPL

Climate (30-year normals)

Average annual temperature
57.0°F
Average high
64.0°F
Average low
50.0°F
Annual precipitation
86.1 in
USDA plant hardiness zone
9b (extreme annual low 25 to 30°F)

Sources: NOAA Climate Normals (30-year, nearest-station) · USDA Plant Hardiness Zone Map (2023)

Air quality

Air quality rating
Good
Median AQI (annual)
38
Days with Good air quality
285
Days with Moderate air quality
80
Highest AQI recorded (year)
87

Source: EPA annual air quality index (county-level)

Amenities

Airports within 30 mi
6
Nearest airport
Mann Ranch Airport (10 mi)
Nearest major airport
Murray Field (EKA) (35 mi)
Hospitals in or near this ZIP
5
Hospitals include
PROVIDENCE ST JOSEPH HOSPITAL, SEMPERVIRENS, MAD RIVER COMMUNITY HOSPITAL
Avg hospital rating (CMS)
3.0 / 5
Best hospital rating nearby (CMS)
4.0 / 5
Solar radiation rating
Good (4.5 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data (same ZIP, else within ~40 mi) · DOE/NREL (proximity-based)

Housing stock

Median year housing built
1973
Housing built before 1970
37.4%
Housing built 2000 or later
17.7%
Median annual property tax
$2,724
Households with broadband internet
53.6%

Source: Census ACS 5-year estimates (ZIP-level)

Employment & development

Total county employment
37,775
Average weekly wage
$1,050
Top industries (by employment)
Health Care, Accommodation & Food, Construction
Annual residential building permits (county)
325

Sources: BLS QCEW (county-level) · Census Building Permits (county-level)

How it compares

PetroliaState medianUS median
Median sale price$727,500$696,000$325,000
Median days on market149 days39 days51 days
Median annual property tax$2,724$4,533$2,006

State and US medians are computed across all US ZIP codes with sufficient public-data coverage, from the same sources as the figures above.

Area data compiled from public government, academic, and industry research feeds. Data sources →

Common questions

What is the median home value in Petrolia, CA?
$566,200 (Census ACS).
What is the median sale price in Petrolia, CA?
$727,500.
How long do homes take to sell in Petrolia, CA?
Median days on market: 149 days.
What is typical rent in Petrolia, CA?
2-bedroom fair-market rent: $1,554/month (HUD FMR — a 40th-percentile regulatory reference, not market-observed).
What is the natural-hazard risk in Petrolia, CA?
Overall risk: Relatively High (FEMA NRI, county-level). Top hazards: coastal flooding, earthquake, inland flooding, landslide, tsunami.
What is the wildfire risk in Petrolia, CA?
Risk to homes is higher than 84% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in Petrolia, CA?
Low radon potential — EPA Zone 3 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near Petrolia, CA?
No current or proposed National Priorities List sites within 5 miles (EPA).
How many schools serve Petrolia, CA?
2 schools (1 elementary, 1 high) (NCES, 2024-25).
What is the air quality in Petrolia, CA?
Good. Median AQI: 38. (EPA AQI).
What is the cost of living in Petrolia, CA?
Regional Price Parity: 110.7 (100 = US average) (High) (BEA RPP, metro/state-level).

ZIP code for Petrolia

Listing a home in Petrolia, CA?

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Data last updated

Most recent source refresh: Oct 2026. See all data sources →

Data compiled by REAIGENT7 — AI listing platform for real estate agents