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Area data

ZIP 94531

Population: 46,387 (Census ACS)

The typical home value in ZIP 94531 is $660,621 — down 1.0% over the past year. Homes sell for a median $668,000 after a median 28 days on market. Typical rent runs $3,483/month. 10 schools serve the area (NCES). 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

$660,621

Typical home value

-1.0%

1-year change

28

Median days on market

Home values & appreciation

Typical home value
$660,621
1-year appreciation
-1.0%
3-year appreciation
-1.8%
5-year appreciation
-1.1%
10-year appreciation
+62.5%
Peak value since 2000 (Jun 2022)
$740,787

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

Market activity

Median sale price
$668,000
Median list price
$667,000
Median price per sqft
$313
1-year sale-price change
-1.4%
Median days on market
28 days
Homes sold (recent period)
101
For-sale inventory
124
Sale-to-list ratio
100.9%
Active listings
100
1-year forecast
+1.0%
Days to pending
33 days
New listings (monthly)
45

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

Rents

Typical rent
$3,483/mo
1-year rent change
+5.2%
Studio fair-market rent
$2,088/mo
1BR fair-market rent
$2,290/mo
2BR fair-market rent
$2,805/mo
3BR fair-market rent
$3,592/mo
4BR fair-market rent
$4,250/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)
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
10
Elementary schools
6
Middle schools
2
High schools
2
Avg student-teacher ratio
22.3 : 1
Schools include
Jack London Elementary, Black Diamond Middle, Deer Valley High, Grant Elementary, Diablo Vista Elementary

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

Natural hazards & flood risk

Most common flood zone among NFIP claims
Zone X
NFIP flood claims on record
2
EPA Superfund (NPL) sites within 5 mi
None
Nearest Superfund site
Concord Naval Weapons Station (14.1 mi)
Flood zones vary by property. Look up a specific address on the FEMA Flood Map Service Center.

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
63.0°F
Average high
74.0°F
Average low
51.0°F
Annual precipitation
12.6 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)

Walkability & transit

Walkability index
7.5 / 20
Transit service frequency
-99,999
Jobs reachable by car (30 min)
25,917
Jobs reachable by transit (45 min)
42,707

Source: EPA Smart Location Database (metropolitan block groups)

Amenities

National parks within ~60 mi
10
Nearest national park
Port Chicago Naval Magazine National Memorial (16 mi)
National parks include
Port Chicago Naval Magazine National Memorial, Eugene O'Neill National Historic Site, John Muir National Historic Site
Airports within 30 mi
21
Nearest airport
Funny Farm Airport (7 mi)
Nearest major airport
Buchanan Field (CCR) (16 mi)
Hospitals in or near this ZIP
1
Hospitals include
KAISER FOUNDATION HOSPITAL - ANTIOCH
Avg hospital rating (CMS)
1.0 / 5
Best hospital rating nearby (CMS)
1.0 / 5
Solar radiation rating
Good (5.1 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
1997
Housing built before 1970
1.9%
Housing built 2000 or later
38.8%
Median annual property tax
$5,820
Mean commute to work
36 min
Households with broadband internet
83.8%

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

How it compares

ZIP 94531State medianUS median
Typical home value$660,621—$288,527
Median sale price$668,000—$325,000
Median days on market28 days—51 days
Typical rent$3,483/mo—$1,809/mo
Median annual property tax$5,820—$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 typical home value in ZIP 94531?
$660,621.
What is the median sale price in ZIP 94531?
$668,000.
How long do homes take to sell in ZIP 94531?
Median days on market: 28 days.
What is typical rent in ZIP 94531?
Typical rent: $3,483/month.
Is ZIP 94531 in a flood zone?
Flood zones vary by property within ZIP 94531. 2 FEMA flood-insurance (NFIP) claims are on record; the most common zone among them is X. Check a specific address on the FEMA Flood Map Service Center.
Are there Superfund sites near ZIP 94531?
No current or proposed National Priorities List sites within 5 miles (EPA).
How many schools serve ZIP 94531?
10 schools (6 elementary, 2 middle, 2 high) (NCES, 2024-25).
Is ZIP 94531 walkable?
Walkability index: 7.5/20 (EPA Smart Location Database).
What is the cost of living in ZIP 94531?
Regional Price Parity: 110.7 (100 = US average) (High) (BEA RPP, metro/state-level).

Nearby ZIP codes

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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