Westwood, California Zip Codes
📍 Westwood is in Lassen County, California with 1 zip code; the most populous is 96137.
Westwood is a USPS city name in Lassen County, California with a Census population of approximately 2,949 across its ZIP codes. Lassen County as a whole has 17 ZIP codes in this directory. Below you'll find every zip code serving Westwood 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 Westwood Zip Codes
Westwood at a Glance
Westwood has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 2,949 residents, the largest being 96137 with 2,949 people.
The median ZIP in Westwood has a household income of $59,280 and a home value of $320,700, a price-to-income ratio of 5.4, below the 6.7 California ZIP median. Median rent across these ZIPs is $754 a month.
78% of households in the typical Westwood ZIP own their home (statewide ZIP median 64%). 25% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 21.3%, far above the 10.8% statewide ZIP median. Overall density is about 21 residents per square mile across 142 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.
Westwood Zip Code Map
Interactive map of Westwood, California zip codes. Click any marker for details.