Upper Lake, California Zip Codes
📍 Upper Lake is in Lake County, California with 1 zip code; the most populous is 95485.
Upper Lake is a USPS city name in Lake County, California with a Census population of approximately 2,909 across its ZIP codes. Lake County as a whole has 15 ZIP codes in this directory. Below you'll find every zip code serving Upper Lake 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 Upper Lake Zip Codes
Upper Lake at a Glance
Upper Lake has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 2,909 residents, the largest being 95485 with 2,909 people.
The median ZIP in Upper Lake has a household income of $71,071 and a home value of $411,200, a price-to-income ratio of 5.8, below the 6.7 California ZIP median. Median rent across these ZIPs is $1,111 a month.
76% of households in the typical Upper Lake ZIP own their home (statewide ZIP median 64%). 19% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 15.6%, above the 10.8% statewide ZIP median. Overall density is about 33 residents per square mile across 87 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.
Upper Lake Zip Code Map
Interactive map of Upper Lake, California zip codes. Click any marker for details.