City profile
Clayton, CA
Contra Costa County · Population 10,937
Clayton is a town in Contra Costa County, CA with about 10,937 residents and a typical home value near $1,055,000. It is 50 miles from Sacramento, CA, which shapes its climate, healthcare access and amenities.
Climate
Climate type
Warm & sunny
Winter avg
48°F
Summer avg
77°F
Sunny days / yr
265
Home prices & cost of living
Median home price
$1,055,200
Typical monthly housing
$6,356
Cost of living (100 = U.S.)
178
Taxes
- Property tax
- 0.71%
- State income tax (top)
- 13.3%
- Social Security
- Not taxed
- Pensions
- Taxed
- Sales tax (state + avg. local)
- 8.85%
FEMA natural hazard risk
Very High · county score 100/100
Top hazards: Earthquake, Riverine flooding, Landslide
Nearest major airport
22 mi to Oakland San Francisco Bay Airport (OAK)
Political lean (2024 county vote)
Leans Democratic · 67% Democratic / 29% Republican
Community
Population
10,937
Black population
0.6%
County
Contra Costa County
Detailed crime figures are available for our 201 hand-researched cities.
2025–2026 trends
2026 market trends
- ▸More retirees are leaving CA than arriving, mostly over cost
- ▸Home insurance is very expensive or hard to get here — get quotes before you buy
- ▸Home prices are softening in 2026 — more room to negotiate
- ▸Climate/cost risks to check: wildfire, earthquakes
Highlights
- About 10,937 residents
- Typical home value about $1,055,000
- 50 miles from Sacramento, CA
Trade-offs
- Smaller community with fewer local amenities
- Scores for this place are estimated from Census data and the nearest major city
Figures are estimates from public sources (see How we match). Verify before making decisions.