Residential delivery area · California
ZIP Code 90740: Seal Beach, CA
ZIP code 90740 is in Seal Beach, California, entirely in Orange County (Census 2020 ZIP-county file). About 24,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $85,347 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Seal Beach · its only residential ZIP
- County
- Orange County
- Census places
- Seal Beach
- Neighborhood
- Seal Beach Trailer Park GeoNames
- Metro area
- Los Angeles-Long Beach-Anaheim, CA
- House district
- CA-47 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 11.1 sq mi · 2,183 people per sq mi
Where is ZIP code 90740?
90740 centers on 33.754°, -118.073° and covers 11.1 square miles of land plus 1.0 of water. It borders 8 ZIP codes: 90743, 90720, 92649, 92845, 90803, 90815, 92647, 92683.
The map draws ZIP code areas only. For the streets inside 90740, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 90740 compare with the rest of Orange County?
| Measure | 90740 | In Orange County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 24,254 | 62nd of 90 | 733rd of 1,802 |
| Median household income | $85k | 72nd of 82 | 766th of 1,189 |
| Median home value | $484k | 84th of 85 | 966th of 1,317 |
Its median household income is higher than in 68% of U.S. residential ZIP codes, and it is denser than 85% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 90740?
The 2020 Census counted 24,769 people in 90740; the ACS, which samples households over 2020-2024, estimates 24,254. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 24,254
- 2020 Census count
- 24,769
- Households
- 12,642
- Median age
- 61.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 90740?
Of the 24,254 people the ACS estimates in 90740, 13.0% are under 18 and 44.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (66.3%), then Hispanic or Latino (14.1%).
- Under 1813.0%
- 18 to 6442.9%
- 65 and older44.1%
- White, not Hispanic66.3%
- Hispanic or Latino14.1%
- Asian, not Hispanic14.1%
- Other or two or more4.2%
- Black, not Hispanic1.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 90740 earn?
Median household income is $85,347 (ACS 2020-2024), the 72nd highest of the 82 ranked ZIP codes in Orange County.
- Median household income
- $85,347
- Income per person
- $68,037
- Below the poverty line
- 6.7%
- Unemployed (of the labor force)
- 4.8%
- Adults 25+ with a bachelor's degree
- 51.4%
- Adjusted gross income per tax return, 2022
- $138,36613,720 returns; wages 45% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 90740?
FHFA's house price index for 90740, built from repeat sales and appraisals of the same homes, rose 66% from 2015 to 2025 and rose 43% from 2020 to 2025, and moved −3.3% in 2025.
- Median home value (owners' estimate)
- $484,100
- Median gross rent
- $2,652
- Homes owned by their occupants
- 76.9%
- Housing units
- 14,243
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 90740?
766 business establishments had a location in this ZIP code in 2023, 53 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services139
- Health care and social assistance115
- Accommodation and food services98
- Retail trade78
- Finance and insurance78
- Other services (except public administration)64
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 90740?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 90743 | Surfside | 468 | $171k | 2.0 mi |
| 90720 | Los Alamitos | 23,805 | $136k | 2.9 mi |
| 92649 | Huntington Beach | 35,346 | $123k | 2.8 mi |
| 92845 | Garden Grove | 16,143 | $137k | 3.3 mi |
| 90803 | Long Beach | 31,526 | $115k | 3.4 mi |
| 90815 | Long Beach | 43,023 | $120k | 3.7 mi |
| 92647 | Huntington Beach | 59,047 | $105k | 4.3 mi |
| 92683 | Westminster | 89,833 | $86k | 4.6 mi |
| 90742 | Sunset Beach | 405 | $122k | 2.3 mi (near) |
| 90822 | Long Beach | 93 | – | 3.1 mi (near) |
| 90840 | Long Beach | 0 | – | 3.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.