South El Monte, California Zip Codes
📍 South El Monte is in Los Angeles County, California with 1 zip code; the most populous is 91733.
South El Monte is a USPS city name in Los Angeles County, California with a Census population of approximately 42,953 across its ZIP codes. Los Angeles County as a whole has 538 ZIP codes in this directory. Below you'll find every zip code serving South El Monte 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 South El Monte Zip Codes
South El Monte at a Glance
South El Monte has 1 ZIP code in this directory: 1 standard delivery ZIP. The 1 ZIP with published Census housing data cover 42,953 residents, the largest being 91733 with 42,953 people.
The median ZIP in South El Monte has a household income of $63,883 and a home value of $576,400, a price-to-income ratio of 9.0, above the 6.7 California ZIP median. Median rent across these ZIPs is $1,600 a month.
43% of households in the typical South El Monte ZIP own their home (statewide ZIP median 64%). 11% of adults hold a bachelor's degree, far below the 31% statewide median. The median poverty rate is 19.3%, far above the 10.8% statewide ZIP median. Overall density is about 6,411 residents per square mile across 7 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.
South El Monte Zip Code Map
Interactive map of South El Monte, California zip codes. Click any marker for details.