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US ZIP Code Profile

ZIP Code 90621
Buena Park, California

ZIP code 90621 is in Buena Park, located in Orange County, California, within the Los Angeles-Long Beach-Anaheim metro area. Its 2020 Census population was 36,972. The estimated median adjusted gross income per tax return is $44,089, and about 5% of filers report $200,000 or more.

2020 Population
36,972
Census ZCTA
County
Orange
FIPS 06059
Median income (est.)
$44,089
IRS SOI 2022
Land Area
4.153 mi²
+ 0.016 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityBuena Park, CA
CountyOrange County (FIPS 06059)
StateCalifornia (FIPS 06)
Metro Area (MSA)Los Angeles-Long Beach-Anaheim, CA Metro Area (31080)
Census Region / DivisionWest Region · Pacific Division
Coordinates33.874226, -117.99337
Land / Water Area4.153 mi² land · 0.016 mi² water

02Income & Economics

Distribution of the 16,930 individual tax returns filed in 90621 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
28.3%
$25K–$50K
28.3%
$50K–$75K
15.9%
$75K–$100K
9.6%
$100K–$200K
13.3%
$200K+
4.5%
The $200,000+ bracket accounts for 26% of 90621's total adjusted gross income, from 5% of returns — a concentration that drives the gap between the median ($44,089) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 90621's IRS income metrics, 2020–2022.

Median income (2021→2022)
$44,089
▲ 4.9%
Filers earning $200K+
4.5%
▲ 0.6 pt
Total filers
16,930
▼ 1.5%
GET /zipc/v2/zipcodes/90621/soi?year=… $38K 2020 $42K 2021 $44K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 90621 ZCTA.

2000
33,525
 
2010
35,153
▲ +4.9%
2020
36,972
▲ +5.2%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 90621. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 90621

Buena Park and its immediate neighbors, sorted by distance.

3 mi
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Distance from 90621 to any ZIP

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06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number051020
City AliasesBuena Park

07Frequently Asked Questions

What county is ZIP code 90621 in?

ZIP code 90621 is in Orange County, California (county FIPS code 06059).

What city is ZIP code 90621?

The primary USPS city for 90621 is Buena Park, CA.

What metro area (MSA) is 90621 in?

90621 is part of the Los Angeles-Long Beach-Anaheim, CA Metro Area (MSA code 31080).

What is the population of ZIP code 90621?

The 2020 Census population of 90621 was 36,972 residents.

What is the median income in ZIP code 90621?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 90621 is about $44,089, with around 5% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.