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ZIP Code 94548
Knightsen, CA, Contra Costa County
Population
832
Land area
2.3sq mi
People per sq mi
360
City
Knightsen
ZIP 94548 and nearby ZIP codes
ZIP 94548 at a glance
- ZIP 94548 (Knightsen) is 43% denser than California as a whole.
- The median household income is $189,653, 91% above the California median of $99,122.
- A typical owner-occupied home is valued at $959,900 (31% above California).
Local data for ZIP 94548
Counts from official public data
Housing and community stats
ZIP 94548, American Community Survey 2020-2024
Median household income
$189,653
Poverty rate
9.1%
Median home value
$959,900
Homeownership
100.0%
Bachelor's or higher
22.3%
Median age
44.2
Average commute
53.2 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
10
ZIP Business Patterns 2023
Employees
60
$2.5M annual payroll
PPP loans
$658K
9 loans
Campaign donations
$4,303
30% D, 52% R, 2026 cycle
Environment and hazard risk
ZIP 94548, from FEMA, NOAA and EPA
Natural hazard risk
Very High
Top: earthquake
Storm events since 1996
472
Countywide, mostly strong wind
Flood insurance policies
2,681
0.9% of homes, county
July high / Jan low
91° / 40°F
12.6 inches of rain a year
Health statistics
Share of adults in ZIP 94548, CDC PLACES estimates
Obesity
30.4%
U.S. 33.3% -2.9 pts
Diabetes
11.7%
U.S. 12.1% about the same
Smoking
10.0%
U.S. 12.8% -2.8 pts
Uninsured (18-64)
8.5%
U.S. 11.1% -2.6 pts
Frequently asked questions
- What city is ZIP code 94548?
- ZIP code 94548 is in Knightsen, CA (Contra Costa County).
- What county is ZIP code 94548 in?
- ZIP code 94548 is mostly in Contra Costa County, California.
- How many people live in ZIP code 94548?
- About 832 people live in the 94548 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.