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Zip Code 90621 — Buena Park, CA

90621 is a ZIP Code associated with Buena Park, CA, located within Orange. The postal region supports an estimated population of 35,984 residents across Data Pending housing units, with a population density of 3,314.8 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (33.873960, -117.993460)

Data Metric	Local Statistic
Postal / Zip Code	90621
Primary City	Buena Park
State / Province	CA
County	Orange
Total Population	35,984
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	3,314.8 people/sq mi
Timezone	America/Los_Angeles

How 90621 Compares

Metric	ZIP 90621	Orange County	CA State Average
Population	35,984	3,138,331	39,286,245
Median Income	Data Pending	N/A	N/A
Population Density	3,314.8 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 92833	Fullerton	1.9 mi	51,842	N/A
Zip 90638	La Mirada	2.2 mi	45,933	N/A
Zip 90620	Buena Park	2.2 mi	46,608	N/A
Zip 90639	La Mirada	2.5 mi	1,671	N/A
Zip 92801	Anaheim	3.1 mi	60,547	N/A

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 →