Lakeside, California Zip Codes
📍 Lakeside is in San Diego County, California with 1 zip code; the most populous is 92040.
Lakeside is a USPS city name in San Diego County, California with a Census population of approximately 45,906 across its ZIP codes. San Diego County as a whole has 191 ZIP codes in this directory. Below you'll find every zip code serving Lakeside 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 Lakeside Zip Codes
Lakeside at a Glance
Lakeside has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 45,906 residents, the largest being 92040 with 45,906 people.
The median ZIP in Lakeside has a household income of $95,952 and a home value of $613,500, a price-to-income ratio of 6.4, in line with the 6.7 California ZIP median. Median rent across these ZIPs is $1,779 a month.
67% of households in the typical Lakeside ZIP own their home (statewide ZIP median 64%). 24% of adults hold a bachelor's degree, below the 31% statewide median. The median poverty rate is 7.5%, below the 10.8% statewide ZIP median. Overall density is about 683 residents per square mile across 67 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.
Lakeside Zip Code Map
Interactive map of Lakeside, California zip codes. Click any marker for details.