Mckinleyville, California Zip Codes
📍 Mckinleyville is in Humboldt County, California with 1 zip code; the most populous is 95519.
Mckinleyville is a USPS city name in Humboldt County, California with a Census population of approximately 18,781 across its ZIP codes. Humboldt County as a whole has 38 ZIP codes in this directory. Below you'll find every zip code serving Mckinleyville 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 Mckinleyville Zip Codes
Mckinleyville at a Glance
Mckinleyville has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 18,781 residents, the largest being 95519 with 18,781 people.
The median ZIP in Mckinleyville has a household income of $68,785 and a home value of $404,300, a price-to-income ratio of 5.9, below the 6.7 California ZIP median. Median rent across these ZIPs is $1,329 a month.
62% of households in the typical Mckinleyville ZIP own their home (statewide ZIP median 64%). 36% of adults hold a bachelor's degree, above the 31% statewide median. The median poverty rate is 13.7%, above the 10.8% statewide ZIP median. Overall density is about 349 residents per square mile across 54 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.
Mckinleyville Zip Code Map
Interactive map of Mckinleyville, California zip codes. Click any marker for details.