ZIP code
91942
La Mesa, CA
91942 covers La Mesa in San Diego County, with 40,920 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 91942. Methodology
ZIP code map of 91942

About ZIP code 91942
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 91942. Not ACS. Methodology
People in 91942
Race
- White25,045
- Black or African American2,553
- American Indian or Alaska Native436
- Asian2,644
- Native Hawaiian and Pacific Islander240
- Other race3,633
- Two or more races6,262
Hispanic or Latino (any race): 10,011
Age
- Under 104,317
- 10 to 193,714
- 20 to 296,140
- 30 to 397,071
- 40 to 495,106
- 50 to 594,855
- 60 to 694,485
- 70 to 792,818
- 80 and older2,307
Income and housing in 91942
Education
- High school graduate93.6%
- Bachelor's degree38.2%
- Graduate degree13.0%
Places covering 91942
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.
- San Diego 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 91942
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 19,288 | |
| 2006 | 19,079 | |
| 2007 | 20,065 | |
| 2008 | 20,677 | |
| 2009 | 29,882 | |
| 2010 | 32,267 | |
| 2011 | 38,314 | 33,227 |
| 2012 | 38,719 | 33,050 |
| 2013 | 38,828 | 33,570 |
| 2014 | 39,438 | 34,030 |
| 2015 | 39,804 | 34,520 |
| 2016 | 39,795 | 34,270 |
| 2017 | 40,239 | 35,010 |
| 2018 | 40,205 | 34,830 |
| 2019 | 40,151 | 35,130 |
| 2020 | 40,714 | 35,230 |
| 2021 | 40,863 | 34,940 |
| 2022 | 40,995 | 34,680 |
| 2023 | 40,920 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 91942
12 nearest ZIP centroids (any distance)
- 91941La Mesa1.9 miPop 33,706 · Income $111,607
- 92119San Diego2.9 miPop 24,868 · Income $115,600
- 92182San Diego3.1 miPop 0 · Income —
- 92115San Diego3.1 miPop 64,011 · Income $75,178
- 91945Lemon Grove3.1 miPop 27,531 · Income $79,381
- 92020El Cajon3.3 miPop 58,490 · Income $72,822
- 92120San Diego3.3 miPop 31,797 · Income $114,579
- 91977Spring Valley3.9 miPop 62,957 · Income $92,407
- 92105San Diego4.7 miPop 71,284 · Income $65,174
- 92124San Diego5.1 miPop 31,032 · Income $108,219
- 92114San Diego5.2 miPop 64,820 · Income $90,171
- 92071Santee5.3 miPop 59,739 · Income $105,603
ZIP centroids within 2 miles
| ZIP | City | State | Distance (miles) | ACS population | Median income |
|---|---|---|---|---|---|
| 91941 | La Mesa | CA | 1.9 mi | 33,706 | $111,607 |
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 91942 FAQ
- What city is ZIP code 91942 in?
- 91942 is in La Mesa, CA.
- What county is 91942 in?
- 91942 is in San Diego County.
- What is the median household income in 91942?
- The median household income in 91942 is $81,262.
- Which ZIP codes are near 91942?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 91942.