Zip Code 90242 — Downey, CA

ZIP Code 90242 is associated with Downey, CA, in Los Angeles County. The listed population estimate is 40,767; estimated density is 3,485.4 people per square mile. Among records with population estimates, it ranks #94 of 288 in Los Angeles County and #372 of 1,762 in CA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (33.922160, -118.141670)

Data MetricLocal Statistic
Postal / Zip Code90242
Primary CityDowney
State / ProvinceCA
CountyLos Angeles
Total Population40,767
Population Density3,485.4 people/sq mi
TimezoneAmerica/Los_Angeles

How 90242 Compares

MetricZIP 90242Los Angeles County recordsCA records
Population estimate40,7679,807,501 (sum)39,286,245 (sum)
Population Density3,485.4 /sq mi----
County population rank#94 of 288----
State population rank#372 of 1,762----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in CA

ZIP CodeCityDistancePopulation estimate
ZIP 90241Downey1.5 mi45,319
ZIP 90723Paramount2.2 mi52,050
ZIP 90706Bellflower2.5 mi76,819
ZIP 90240Downey2.7 mi24,853
ZIP 90280South Gate3.3 mi91,365

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →