Downieville, California Zip Codes
📍 Downieville is in Sierra County, California with 1 zip code; the most populous is 95936.
Downieville is a USPS city name in Sierra County, California with a Census population of approximately 121 across its ZIP codes. Sierra County as a whole has 8 ZIP codes in this directory. Below you'll find every zip code serving Downieville 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 Downieville Zip Codes
Downieville at a Glance
Downieville has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 121 residents, the largest being 95936 with 121 people.
The median ZIP in Downieville has a household income of $106,058 and a home value of $1,048,100, a price-to-income ratio of 9.9, above the 6.7 California ZIP median.
100% of households in the typical Downieville ZIP own their home (statewide ZIP median 64%). 18% of adults hold a bachelor's degree, below the 31% statewide median. Overall density is about 3 residents per square mile across 44 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.
Downieville Zip Code Map
Interactive map of Downieville, California zip codes. Click any marker for details.