🇺🇸 United States ZIP Code

STANDARD

92020

El Cajon

ZIP Code 92020 is a standard zip code serving El Cajon, El Cajon, California (CA), in San Diego County, United States. It has an estimated population of 57,767 with a median household income of $46,856. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: San Diego
City: El Cajon
Timezone: America/Los_Angeles

Coordinates

Latitude: 32.792800
Longitude: -116.966500

Geographic Details

Land Area: 11.14 mi²
Population Density: 5188.0 people per mi² (90th percentile)
Bounding Box: 32.831042°N, 32.756825°S, -116.928440°E, -117.005880°W

With 57,767 residents spread across 11.14 square miles, this area has a population density of 5188.0 people per square mile.

Demographics

57,767

Population

95th percentile

$46,856

Median Income

45th percentile

$380,200

Median Home Value

90th percentile

11.14 mi²

Land Area

The median household income in 92020 is $46,856, and the median home value is $380,200.

Housing

20,894

Total Units

19,966

Occupied Units

95.6%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in El Cajon, CA.

92019

El Cajon

92021

El Cajon

92022

El Cajon

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

95954

Magalia

$39,932

91706

Baldwin Park

$51,232

91911

Chula Vista

$48,111

92544

Hemet

$43,726

93905

Salinas

$41,607

90010

Los Angeles

$51,359

93458

Santa Maria

$44,209

92571

Perris

$50,598

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.