Seal Beach, CA
Census ZIP code profile for Seal Beach, CA — 1 ZIPs, total population 23,729. Median income, home value, education, commute, and demographics from the U.S. Census Bureau American Community Survey 2023 5-Year Estimates.
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Seal Beach, CA is covered by 1 USPS ZIP code serving a combined population of 23,729 according to Census ACS 5-Year Estimates. U.S. cities rarely map cleanly to a single ZIP — Seal Beach splits its residents across 1 delivery areas, each with its own demographic and housing profile. The table below lists every ZIP by population, so you can see which neighborhoods carry the weight of the city total and which are smaller pockets of the same municipal boundary.
Aggregated across every ZIP in Seal Beach, the median household income averages $85,347 and per-capita income averages $68,037. Poverty rate runs at 6.7% and unemployment at 4.7%. On housing, the average median home value is $484,100 with median rent of $2,652 per month, and 76.9% of occupied units are owner-occupied. These are arithmetic averages across the 1 ZIP — not population-weighted — so small ZIPs influence the headline numbers the same as large ones.
Use this city view to compare ZIPs inside Seal Beach against each other rather than hunting for a single "city average." The Affordability Dashboard linked below combines these Census inputs with HUD Fair Market Rents, FBI crime data, and Department of Labor childcare costs into a graded scorecard for Seal Beach as a whole, while individual ZIP pages show fine-grained household income, housing profile, education attainment, commute time, and nearby-ZIP benchmarks. Every field on this page is sourced directly from U.S. Census Bureau ACS 2023 5-Year Estimates — no estimates, no proprietary scoring, no editorial adjustment.
1
ZIP Codes
23,729
Population
$85,347
Median Income
$484,100
Median Home Value
61.6
Median Age
How much do residents of Seal Beach earn?
What does housing look like in Seal Beach?
Who lives in Seal Beach?
ZIP Codes in Seal Beach, CA
| ZIP Code | Population | Density | Timezone |
|---|---|---|---|
| 90740 | 23,729 | 1,043 | America/Los_Angeles |
Frequently Asked Questions
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Related Guides
Understanding ZIP Code Data
What Census data tells you about a ZIP code
Income Inequality by ZIP Code
What median income hides and how to read the full picture
Official Data Resources for Seal Beach
Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023). Verify with Census Bureau →
Source: HUD USPS Crosswalk (ZIP-to-county mapping) and Source: simplemaps.com (ZIP coordinates & timezones). Verify with HUD →
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Census Bureau American Community Survey (ACS). Consult a qualified professional before making decisions based on this data.
Read our methodology to see how this data is sourced, computed, and verified.