El Cajon, CA Profile: Facts, Map & Data


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El Cajon, California - Basic Facts

The City of El Cajon had a population of 105,071 as of July 1, 2018. El Cajon ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for El Cajon is located at latitude 32.8017 and longitude -116.9604 in San Diego County. The formal boundaries for the City of El Cajon (see map below) encompass a land area of 14.48 sq. miles and a water area of 0 sq. miles. San Diego County is in the Pacific time zone (GMT -8). The elevation is 433 feet.

The City of El Cajon (GNIS ID: 2410406) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of El Cajon is located within San Diego CCD of San Diego County.

Beneath the boundary map are tables with El Cajon population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

Alternate Unofficial Names for El Cajon: Elcajon.

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City of El Cajon, CA Boundary Map

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El Cajon, CA Data & Demographics (As of July 1, 2018)


Total Population 105,071
Population in Households 102,545
Population in Familes 84,671
Population in Group Qrtrs 2,526
Population Density2 7,257
Diversity Index3 75


Median Household Income $51,642
Average Household Income $71,595
Per Capita Income $25,303


Total Housing Units 37,082 (100%)
Owner Occupied HU 14,252 (38.4%)
Renter Occupied HU 21,414 (57.7%)
Vacant Housing Units 1,415 ( 3.8%)
Median Home Value $439,375
Average Home Value $480,203


Total Households 35,667
Average Household Size 2.88
Family Households 24,719
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 0.67% 0.67%
Households 0.53% 0.6%
Families 0.55% 0.63%
Median Household Income   2.5%
Per Capita Income   3.05%

El Cajon, CA - Peer Comparisons by Rank and Percentile

The table below compares El Cajon to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2018 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 # 70 95th
Population Density # 127 92nd
Diversity Index # 514 66th
Median Household Income # 957 37th
Per Capita Income # 979 35th

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

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