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Area data

Castro valley, CA — ZIP 94552

Population: 14,506 (Census ACS)

The median home value in ZIP 94552 (Castro valley, CA) is $1.38M — down 0.7% over the past year. Homes sell for a median $1.50M after a median 13 days on market. Typical rent runs $4,073/month. 4 schools serve the area (NCES). FEMA's National Risk Index rates the county's overall natural-hazard risk Very High, with earthquake, inlandflooding, coastalflooding the top-rated hazards. Cost of living is 13.3% above the US average (BEA, metro/state-level).

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

$1.38M

Median home value

-0.7%

1-year change

13

Median days on market

Very High

Hazard risk (county)

Home values & appreciation

Median home value
$1.38M
1-year appreciation
-0.7%
3-year appreciation
+6.0%
5-year appreciation
+10.7%
10-year appreciation
+66.1%
All-time peak (2022-06)
$1.49M
House Price Index (state)
417.4 (-0.8% YoY)

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

Market activity

Median sale price
$1.50M
Median list price
$1.56M
Median price per sqft
$679
1-year sale-price change
-2.3%
Median days on market
13 days
Homes sold (recent period)
20
For-sale inventory
20
Sale-to-list ratio
101.7%
Active listings
8
1-year forecast
-1.7%
New listings (monthly)
10

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

Rents

Typical rent
$4,073/mo
Studio fair-market rent
$1,495/mo
1BR fair-market rent
$1,869/mo
2BR fair-market rent
$2,330/mo
3BR fair-market rent
$3,029/mo
4BR fair-market rent
$3,495/mo

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

Affordability

Cost of living index (High)
113.3 (100 = US avg)
Electricity rate (state-level)
32.5¢/kWh
Natural gas rate (state-level)
$22.00/MCF
30-year mortgage rate (national)
6.66%
15-year mortgage rate (national)
6.00%

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

Schools

Total schools
4
Elementary schools
3
Middle schools
1
High schools
0
Schools include
Canyon Middle, Palomares Elementary, Jensen Ranch Elementary, Independent Elementary

Source: NCES school directory, 2022-23 (school-address-based)

Natural hazards & flood risk

Overall hazard risk (county)
Very High
Top hazards (county)
earthquake, inlandFlooding, coastalFlooding, heatWave, landslide
Notable hazard ratings (county)
coastalFlooding: Relatively High · drought: Relatively Moderate · earthquake: Very High · hail: Relatively Low · heatWave: Relatively High · inlandFlooding: Very High
FEMA flood zone
X
Flood risk level
Minimal
Wildfire risk to homes (county)
Higher than 97% of US counties
Buildings in wildfire direct-exposure zone
5.4%
Radon potential (county)
Moderate radon potential — EPA Zone 2 of 3
EPA Superfund (NPL) sites within 5 mi
None
Nearest Superfund site
AMCO Chemical (15.9 mi)
EPA recommends radon testing for every home regardless of zone.

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

Climate (30-year normals)

Annual precipitation
17.5 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)
48
Days with Good air quality
197
Days with Moderate air quality
155
Highest AQI recorded (year)
130

Source: EPA air quality data (nearest monitoring station, annual)

Walkability & transit

Walkability index
6.8 / 20
Transit service frequency
-99,999
Jobs reachable by car (30 min)
101,668
Jobs reachable by transit (45 min)
93,202

Source: EPA Smart Location Database (metropolitan block groups)

Amenities

National parks within ~60 mi
11
Nearest national park
Eugene O'Neill National Historic Site (7 mi)
National parks include
Eugene O'Neill National Historic Site, John Muir National Historic Site, Rosie the Riveter WWII Home Front National Historical Park
Airports within 30 mi
16
Nearest airport
Boneyard Airstrip (4 mi)
Nearest major airport
San Francisco Bay Oakland International Airport (OAK) (11 mi)
Hospitals nearby (~15 mi)
22
Hospitals include
ST ROSE HOSPITAL, PENINSULA MEDICAL CENTER, ALTA BATES SUMMIT MEDICAL CENTER
Avg hospital rating (CMS)
3.2 / 5
Best hospital rating nearby (CMS)
5.0 / 5
EV charging stations (within 10 mi)
420
Solar radiation rating
Good (4.9 kWh/m²/day)

Sources: National Park Service · FAA airport data · CMS hospital data · DOE/NREL (proximity-based)

Migration

Net migration (county)
-11,985 tax filers

Source: IRS county-to-county migration data (county-level, ~12-month lag)

Housing stock

Median year housing built
1,988
Housing built before 1970
17.8%
Housing built 2000 or later
6.7%
Median annual property tax
$9,823
Mean commute to work
26 min
Households with broadband internet
88.2%

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

Employment & development

Total county employment
685,689
Average weekly wage
$1,798
Top industries (by employment)
Health Care, Professional Services, Accommodation & Food
Annual residential building permits (county)
725

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

How it compares

ZIP 94552State medianUS median
Median home value$1.38M$702,573$289,727
Median sale price$1.50M$696,000$325,000
Median days on market13 days39 days51 days
Typical rent$4,073/mo$2,767/mo$1,808/mo
Median annual property tax$9,823$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 ZIP 94552?
$1.38M.
What is the median sale price in ZIP 94552?
$1.50M.
How long do homes take to sell in ZIP 94552?
Median days on market: 13 days.
What is typical rent in ZIP 94552?
Typical rent: $4,073/month.
What is the natural-hazard risk in ZIP 94552?
Overall risk: Very High (FEMA NRI, county-level). Top hazards: earthquake, inlandFlooding, coastalFlooding, heatWave, landslide.
Is ZIP 94552 in a flood zone?
Minimal (FEMA NFIP). FEMA flood zone X.
What is the wildfire risk in ZIP 94552?
Risk to homes is higher than 97% of US counties (USDA Forest Service Wildfire Risk to Communities, county-level).
What is the radon potential in ZIP 94552?
Moderate radon potential — EPA Zone 2 of 3, county-level. EPA recommends testing every home regardless of zone.
Are there Superfund sites near ZIP 94552?
No current or proposed National Priorities List sites within 5 miles (EPA).
How many schools serve ZIP 94552?
4 schools (3 elementary, 1 middle) (NCES, 2022-23).
Is ZIP 94552 walkable?
Walkability index: 6.8/20 (EPA Smart Location Database).
What is the air quality in ZIP 94552?
Good. Median AQI: 48. (EPA AQI).
What is the cost of living in ZIP 94552?
Regional Price Parity: 113.3 (100 = US average) (High) (BEA RPP, metro/state-level).

Nearby ZIP codes

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Data last updated

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

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