Middletown, California Zip Codes
📍 Middletown is in Lake County, California with 1 zip code; the most populous is 95461.
Middletown is a USPS city name in Lake County, California with a Census population of approximately 3,909 across its ZIP codes. Lake County as a whole has 15 ZIP codes in this directory. Below you'll find every zip code serving Middletown 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 Middletown Zip Codes
Middletown at a Glance
Middletown has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 3,909 residents, the largest being 95461 with 3,909 people.
The median ZIP in Middletown has a household income of $79,914 and a home value of $400,900, a price-to-income ratio of 5.0, below the 6.7 California ZIP median. Median rent across these ZIPs is $2,113 a month.
70% of households in the typical Middletown ZIP own their home (statewide ZIP median 64%). 26% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 8.6%, below the 10.8% statewide ZIP median. Overall density is about 32 residents per square mile across 123 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.
Middletown Zip Code Map
Interactive map of Middletown, California zip codes. Click any marker for details.