ZIP code 94548: Knightsen, CA
94548 is a ZIP code in Knightsen, California, mainly in Contra Costa County, part of the San Francisco-Oakland-Fremont, CA metro area. About 832 people live here.
- Population
- 832
- Median household income
- $189,653
- Typical home value
- $959,900ACS median value
- Median rent
- —gross, per month
- Median age
- 44.2
- Homeowners
- 100%of occupied homes
Shaded: ZIP code 94548's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 94548 details
| City | Knightsen |
|---|---|
| State | California |
| County | Contra Costa County |
| Metro area | San Francisco-Oakland-Fremont, CA |
| Time zone | Pacific Time (UTC−8), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 2.3 sq mi, plus 0.1 sq mi of water |
| Population density | 360 people per sq mi |
| Bachelor's degree or higher | 22.3% of adults 25+ |
| Average commute | 53.2 minutes |
| Center coordinates | 37.97429, -121.65144 |
ZIP codes near 94548
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 94561 | Oakley, CA | 2.5 mi | 46,368 |
| 94511 | Bethel Island, CA | 3.9 mi | 1,864 |
| 94513 | Brentwood, CA | 3.9 mi | 69,755 |
| 94531 | Antioch, CA | 7.0 mi | 46,387 |
| 94505 | Discovery Bay, CA | 7.7 mi | 14,970 |
| 95219 | Stockton, CA | 8.7 mi | 31,713 |
| 94509 | Antioch, CA | 8.9 mi | 70,090 |
| 94514 | Byron, CA | 10.3 mi | 1,953 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 94548?
A typical home in ZIP code 94548 is worth about $959,900 (ACS median value). The median household here earns $189,653 a year. See what buying here would cost per month, with California average taxes and insurance filled in.
Monthly payment for a $959,900 homeWhat can a $189,653 income afford?Rental property numbers
About ZIP code 94548
What city is ZIP code 94548?
ZIP code 94548 is in Knightsen, CA, in Contra Costa County.
What county is ZIP code 94548 in?
94548 is mainly in Contra Costa County, California.
What is the population of ZIP code 94548?
About 832 people live in ZIP code 94548, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 94548 in?
94548 is in Pacific Time (UTC−8). It observes daylight saving time.