Knightsen, California Zip Codes
📍 Knightsen is in Contra Costa County, California with 1 zip code; the most populous is 94548.
Knightsen is a USPS city name in Contra Costa County, California with a Census population of approximately 598 across its ZIP codes. Contra Costa County as a whole has 53 ZIP codes in this directory. Below you'll find every zip code serving Knightsen with population, income and home value, a map, and the city's affordability profile.
Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).
All Knightsen Zip Codes
Knightsen at a Glance
Knightsen has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 598 residents, the largest being 94548 with 598 people.
The median ZIP in Knightsen has a household income of $166,597 and a home value of $1,041,700, a price-to-income ratio of 6.3, below the 6.7 California ZIP median.
100% of households in the typical Knightsen ZIP own their home (statewide ZIP median 64%). 41% of adults hold a bachelor's degree, above the 31% statewide median. The median poverty rate is 2.7%, far below the 10.8% statewide ZIP median. Overall density is about 260 residents per square mile across 2 square miles of ZIP land area.
Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 California ZIP Code Affordability Report.
Knightsen Zip Code Map
Interactive map of Knightsen, California zip codes. Click any marker for details.