Zip Code 90621
Buena Park, California — Orange County
📍 ZIP code 90621 is in Buena Park, Orange County, California.
ZIP code 90621 is located in Buena Park, Orange County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 35,735. The area code for ZIP code 90621 is 818.
Quick Answer
Zip code 90621 is in Buena Park, California (Orange County). It has a population of 35,735, median household income of $94,679, and median home value of $734,400.
Population
35,735
Income
$94,679
Home Value
$734,400
Climate
84°F / 46°F
About Zip Code 90621
Zip code 90621 is located in Buena Park, California, within Orange County. Home to approximately 35,735 residents, this area sits at an elevation of 81 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 818.
The median household income is $94,679 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $734,400, and the cost of living index is 204 (104% above the national average of 100).
Summers average a high of 84°F while winters drop to 46°F. The area receives about 12 in of rain annually. The zip code covers 4.2 square miles of land area.
Key Statistics
35,735
$94,679
$734,400
Pacific (PST/PDT)
818
81 ft
4.2 sq mi
37
11,244
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Compare With Nearby Zip Codes
| Metric | 90621 | 92833 | 90638 | 90620 | 92801 | 90623 |
|---|---|---|---|---|---|---|
| City | Buena Park, CA | Fullerton, CA | La Mirada, CA | Buena Park, CA | Anaheim, CA | Buena Park, CA |
| Population | 35,735 | 52,038 | 45,714 | 46,992 | 61,218 | 15,369 |
| Median Income | $94,679 | $113,296 | $110,606 | $122,582 | $78,477 | $112,366 |
| Home Value | $734,400 | $844,000 | $765,100 | $782,000 | $632,600 | $920,200 |
| Cost of Living | 204 | 219 | 207 | 210 | 169 | 245 |
| Median Age | 37 | 37.5 | 43.7 | 37.7 | 35.1 | 46.9 |
Cost of Living
100 = National Average. Buena Park's cost of living is 104% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
7.8x
Demographics
Zip code 90621 has a population of 35,735 people with a median age of 37. There are 11,244 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Buena Park (90621) population trend from 2010 to 2024
↑ 101.7%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
84°F
46°F
12 in
0 in
Buena Park experiences warm summers with average highs around 84°F. Winters are mild with lows averaging 46°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$734,400
Median Household Income
$94,679
With 11,244 housing units across 4.2 square miles, 90621 has a housing density of 2,677 units per square mile. The home price-to-income ratio is 7.8x.
Location & Geography
Latitude
33.8742°
Longitude
-117.9934°
Land Area
4.2 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 90621 (Buena Park, CA) with distances:
All Zip Codes in Buena Park, CA
Other zip codes serving Buena Park:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 90621's $94,679. A way to compare Buena Park 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 90621 (Buena Park, 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 Buena Park, California?
Buena Park, California uses zip code 90621 along with 2 other zip codes.
What county is zip code 90621 in?
Zip code 90621 is located in Orange County, California.
What is the population of zip code 90621?
The population of zip code 90621 is 35,735 with a median age of 37.
Is 90621 in Buena Park, California?
Yes, zip code 90621 is in Buena Park, Orange County, California. The area code is 818.
Frequently Asked Questions
What city is zip code 90621 in?
Zip code 90621 is in Buena Park, California. It is part of Orange County and uses the Pacific (PST/PDT) timezone.
What is zip code 90621?
Zip code 90621 is a U.S. postal code in Buena Park, California (Orange County). It has a population of 35,735 and covers 4.2 square miles.
What is the population of zip code 90621?
The population of zip code 90621 (Buena Park, CA) is 35,735 with a median age of 37. There are approximately 11,244 housing units in this area.
What is the median income in zip code 90621?
The median household income in zip code 90621 (Buena Park, CA) is $94,679 per year. The cost of living index is 204 (100 = national average).
What is the average home price in zip code 90621?
The median home value in zip code 90621 (Buena Park, CA) is $734,400. The cost of living index is 204 compared to the national average of 100.
What county is zip code 90621 in?
Zip code 90621 is located in Orange County, California. The primary city is Buena Park.
What is the area code for zip code 90621?
Zip code 90621 in Buena Park, CA uses area code 818. It is located in the Pacific (PST/PDT) timezone.
Is zip code 90621 a good place to live?
Zip code 90621 (Buena Park, CA) has a cost of living index of 204 (100 = national average), a median household income of $94,679, and median home values of $734,400. The median age is 37. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 90621?
The cost of living index for zip code 90621 (Buena Park, CA) is 204, where 100 represents the national average. This area is above the national average. Median home value: $734,400.
What schools serve zip code 90621?
Zip code 90621 in Buena Park, California is served by the local school district of Orange 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.