Zip Code 90242
Downey, California — Los Angeles County
📍 ZIP code 90242 is in Downey, Los Angeles County, California.
ZIP code 90242 is located in Downey, Los Angeles County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 40,983. The area code for ZIP code 90242 is 310.
Quick Answer
Zip code 90242 is in Downey, California (Los Angeles County). It has a population of 40,983, median household income of $83,238, and median home value of $676,100.
Population
40,983
Income
$83,238
Home Value
$676,100
Climate
81°F / 47°F
About Zip Code 90242
Zip code 90242 is located in Downey, California, within Los Angeles County. Home to approximately 40,983 residents, this area sits at an elevation of 103 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 310.
The median household income is $83,238 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $676,100, and the cost of living index is 179 (79% above the national average of 100).
Summers average a high of 81°F while winters drop to 47°F. The area receives about 12 in of rain annually. The zip code covers 4.6 square miles of land area.
Key Statistics
40,983
$83,238
$676,100
Pacific (PST/PDT)
310
103 ft
4.6 sq mi
37.4
12,756
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Compare With Nearby Zip Codes
| Metric | 90242 | 90241 | 90723 | 90706 | 90240 | 90280 |
|---|---|---|---|---|---|---|
| City | Downey, CA | Downey, CA | Paramount, CA | Bellflower, CA | Downey, CA | South Gate, CA |
| Population | 40,983 | 45,484 | 52,546 | 77,396 | 25,326 | 91,719 |
| Median Income | $83,238 | $84,375 | $70,912 | $77,602 | $108,860 | $71,379 |
| Home Value | $676,100 | $770,100 | $500,400 | $661,100 | $764,200 | $608,500 |
| Cost of Living | 179 | 195 | 137 | 173 | 206 | 160 |
| Median Age | 37.4 | 35.9 | 33.2 | 35.9 | 38.1 | 35.2 |
Cost of Living
100 = National Average. Downey's cost of living is 79% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
8.1x
Demographics
Zip code 90242 has a population of 40,983 people with a median age of 37.4. There are 12,756 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Downey (90242) population trend from 2010 to 2024
↓ -31.0%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
81°F
47°F
12 in
0 in
Downey experiences warm summers with average highs around 81°F. Winters are mild with lows averaging 47°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$676,100
Median Household Income
$83,238
With 12,756 housing units across 4.6 square miles, 90242 has a housing density of 2,773 units per square mile. The home price-to-income ratio is 8.1x.
Location & Geography
Latitude
33.9218°
Longitude
-118.1406°
Land Area
4.6 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 90242 (Downey, CA) with distances:
All Zip Codes in Downey, CA
Other zip codes serving Downey:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 90242's $83,238. A way to compare Downey to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 90242 (Downey, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Downey, California?
Downey, California uses zip code 90242 along with 2 other zip codes.
What county is zip code 90242 in?
Zip code 90242 is located in Los Angeles County, California.
What is the population of zip code 90242?
The population of zip code 90242 is 40,983 with a median age of 37.4.
Is 90242 in Downey, California?
Yes, zip code 90242 is in Downey, Los Angeles County, California. The area code is 310.
Frequently Asked Questions
What city is zip code 90242 in?
Zip code 90242 is in Downey, California. It is part of Los Angeles County and uses the Pacific (PST/PDT) timezone.
What is zip code 90242?
Zip code 90242 is a U.S. postal code in Downey, California (Los Angeles County). It has a population of 40,983 and covers 4.6 square miles.
What is the population of zip code 90242?
The population of zip code 90242 (Downey, CA) is 40,983 with a median age of 37.4. There are approximately 12,756 housing units in this area.
What is the median income in zip code 90242?
The median household income in zip code 90242 (Downey, CA) is $83,238 per year. The cost of living index is 179 (100 = national average).
What is the average home price in zip code 90242?
The median home value in zip code 90242 (Downey, CA) is $676,100. The cost of living index is 179 compared to the national average of 100.
What county is zip code 90242 in?
Zip code 90242 is located in Los Angeles County, California. The primary city is Downey.
What is the area code for zip code 90242?
Zip code 90242 in Downey, CA uses area code 310. It is located in the Pacific (PST/PDT) timezone.
Is zip code 90242 a good place to live?
Zip code 90242 (Downey, CA) has a cost of living index of 179 (100 = national average), a median household income of $83,238, and median home values of $676,100. The median age is 37.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 90242?
The cost of living index for zip code 90242 (Downey, CA) is 179, where 100 represents the national average. This area is above the national average. Median home value: $676,100.
What schools serve zip code 90242?
Zip code 90242 in Downey, California is served by the local school district of Los Angeles County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.