ZIP Code 91731

ZIP code 91731 is classified by USPS as a standard delivery area and covers roughly 9.9 square miles in El Monte, Los Angeles County, California. The area is home to 29,591 residents, producing a population density of 2,995 people per square mile, and falls within the Los Angeles time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 91731 against California and the nation.

On the economic side, the median household income for ZIP 91731 sits at $62,215 (39% below the California average), while per-capita income is $24,216. The poverty rate stands at 17.8% and the unemployment rate at 6.2%. On housing, the median home value is $635,600 (18% below the state average) with median rent at $1,669 per month, and 39.6% of occupied units are owner-occupied, a direct signal of whether 91731 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 15.2% of adults hold a bachelor's degree or higher, the median age is 36.6, and the average commute is 29 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Los Angeles County, so you can benchmark 91731 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →