ZIP code
91731
El Monte, CA
91731 covers El Monte in Los Angeles County, with 28,122 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 91731. Methodology
ZIP code map of 91731

About ZIP code 91731
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 91731. Not ACS. Methodology
People in 91731
Race
- White3,940
- Black or African American317
- American Indian or Alaska Native581
- Asian8,712
- Native Hawaiian and Pacific Islander18
- Other race10,208
- Two or more races4,421
Hispanic or Latino (any race): 17,830
Age
- Under 103,068
- 10 to 193,815
- 20 to 294,364
- 30 to 393,765
- 40 to 493,493
- 50 to 593,482
- 60 to 693,173
- 70 to 791,928
- 80 and older1,109
Income and housing in 91731
Education
- High school graduate67.5%
- Bachelor's degree15.2%
- Graduate degree3.1%
Places covering 91731
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Los Angeles County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Population history for 91731
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 23,567 | |
| 2006 | 23,649 | |
| 2007 | 25,817 | |
| 2008 | 25,019 | |
| 2009 | 26,157 | |
| 2010 | 27,066 | |
| 2011 | 29,279 | 27,916 |
| 2012 | 29,703 | 26,580 |
| 2013 | 29,744 | 25,970 |
| 2014 | 29,209 | 25,480 |
| 2015 | 30,418 | 25,770 |
| 2016 | 30,179 | 25,110 |
| 2017 | 30,063 | 24,980 |
| 2018 | 30,139 | 23,690 |
| 2019 | 30,222 | 23,880 |
| 2020 | 30,313 | 24,010 |
| 2021 | 28,244 | 22,900 |
| 2022 | 28,201 | 22,550 |
| 2023 | 28,122 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 91731
12 nearest ZIP centroids (any distance)
- 91732El Monte1.7 miPop 58,056 · Income $67,172
- 91780Temple City1.7 miPop 35,136 · Income $101,746
- 91733South El Monte2.3 miPop 41,716 · Income $67,245
- 91770Rosemead2.4 miPop 58,893 · Income $73,757
- 91776San Gabriel3.0 miPop 37,769 · Income $79,926
- 91007Arcadia3.4 miPop 33,141 · Income $101,762
- 91775San Gabriel3.6 miPop 23,776 · Income $113,703
- 91006Arcadia4.0 miPop 32,106 · Income $127,511
- 91746La Puente4.1 miPop 28,256 · Income $84,967
- 91804Alhambra4.5 miPop — · Income —
- 91755Monterey Park4.5 miPop 26,413 · Income $74,362
- 91706Baldwin Park4.5 miPop 71,620 · Income $79,473
ZIP centroids within 2 miles
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 91731 FAQ
- What city is ZIP code 91731 in?
- 91731 is in El Monte, CA.
- What county is 91731 in?
- 91731 is in Los Angeles County.
- What is the median household income in 91731?
- The median household income in 91731 is $60,887.
- Which ZIP codes are near 91731?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 91731.