🇺🇸 United States ZIP Code

STANDARD

90242

Downey

ZIP Code 90242 is a standard zip code serving Downey, Downey, California (CA), in Los Angeles County, United States. It has an estimated population of 43,497 with a median household income of $58,217. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: California (CA)
County: Los Angeles
City: Downey
Timezone: America/Los_Angeles

Coordinates

Latitude: 33.921800
Longitude: -118.139500

Geographic Details

Land Area: 4.55 mi²
Water Area: 0.02 mi²
Population Density: 9559.0 people per mi² (95th percentile)
Bounding Box: 33.943933°N, 33.902455°S, -118.109848°E, -118.170424°W

With 43,497 residents spread across 4.55 square miles, this area has a population density of 9559.0 people per square mile.

Demographics

43,497

Population

95th percentile

$58,217

Median Income

70th percentile

$374,700

Median Home Value

90th percentile

4.55 mi²

Land Area

The median household income in 90242 is $58,217, and the median home value is $374,700.

Housing

13,294

Total Units

12,687

Occupied Units

95.4%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Downey, CA.

90239

Downey

90240

Downey

90241

Downey

Similar ZIP Codes in California

ZIP codes with similar median household income in California.

92373

Redlands

$65,649

93243

Lebec

$64,611

92109

San Diego

$64,478

90631

La Habra

$65,804

91910

Chula Vista

$54,056

94956

Point Reyes Station

$57,105

92804

Anaheim

$53,293

95369

Snelling

$49,500

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.