La Mesa, CA 91942 ZIP Code Profile

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La Mesa, CA

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ZIP Code 91942: Basic Data & USPS Preferred City Name

Preferred Name, USPS
La Mesa, CA 91942

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,753
  • Single Family Addresses: 10,637
  • Multi-Family Addresses: 6,907
  • County: San Diego County
  • Centroid: Latitude 32.784, Longitude -117.018
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


91942 ZIP Code Map

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La Mesa, CA 91942 Data & Demographics (As of July 1, 2017)


Total Population 40,976
Daytime Population: Workers 26,075
Daytime Population: Residents 20,970
Total Daytime Population (TDP) 47,045
Ratio TDP/Total Population1 1.15
Population in Households 40,483
Population in Familes 27,706
Population in Group Qrtrs 493
Population Density2 6,945
Diversity Index3 66


Median Household Income $54,597
Average Household Income $72,043
Per Capita Income $32,451


Total Housing Units 19,385 (100%)
Owner Occupied HU 7,613 (39.3%)
Renter Occupied HU 10,553 (54.4%)
Vacant Housing Units 1,219 ( 6.3%)
Median Home Value $416,391
Average Home Value $443,353


Total Households 18,166
Average Household Size 2.23
Family Households 9,495
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.97% 0.94%
Households 0.88% 0.89%
Families 0.87% 0.88%
Median Household Income   1.62%
Per Capita Income   2.34%

La Mesa, CA 91942 - Peer Comparisons by Rank and Percentile

The table below compares 91942 to the other 1,761 ZIP Codes in California by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 372 79th
Population Density # 316 82nd
Diversity Index # 938 47th
Median Household Income # 1014 42nd
Per Capita Income # 777 56th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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