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).
$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)
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 94531 | State median | US median | |
|---|---|---|---|
| Typical home value | $660,621 | — | $288,527 |
| Median sale price | $668,000 | — | $325,000 |
| Median days on market | 28 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 →