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US ZIP Code Profile

ZIP Code 90740
Seal Beach, California

ZIP code 90740 is in Seal Beach, located in Orange County, California, within the Los Angeles-Long Beach-Anaheim metro area. Its 2020 Census population was 24,769. The estimated median adjusted gross income per tax return is $69,803, and about 16% of filers report $200,000 or more.

2020 Population
24,769
Census ZCTA
County
Orange
FIPS 06059
Median income (est.)
$69,803
IRS SOI 2022
Land Area
8.78 mi²
+ 0.76 mi² water

01Location & Geography

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

Primary CitySeal Beach, 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
Coordinates33.75903, -118.067184
Land / Water Area8.78 mi² land · 0.76 mi² water

02Income & Economics

Distribution of the 13,720 individual tax returns filed in 90740 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
24.5%
$25K–$50K
15.2%
$50K–$75K
13.0%
$75K–$100K
10.4%
$100K–$200K
20.8%
$200K+
16.1%
The $200,000+ bracket accounts for 61% of 90740's total adjusted gross income, from 16% of returns — a concentration that drives the gap between the median ($69,803) 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 90740's IRS income metrics, 2020–2022.

Median income (2021→2022)
$69,803
▲ 1.0%
Filers earning $200K+
16.1%
▲ 0.4 pt
Total filers
13,720
▼ 0.7%
GET /zipc/v2/zipcodes/90740/soi?year=… $60K 2020 $69K 2021 $70K 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 90740 ZCTA.

2000
24,177
 
2010
23,729
▼ -1.9%
2020
24,769
▲ +4.4%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 90740. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 90740

Seal Beach and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 90740 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number057092
City AliasesSeal Beach

07Frequently Asked Questions

What county is ZIP code 90740 in?

ZIP code 90740 is in Orange County, California (county FIPS code 06059).

What city is ZIP code 90740?

The primary USPS city for 90740 is Seal Beach, CA.

What metro area (MSA) is 90740 in?

90740 is part of the Los Angeles-Long Beach-Anaheim, CA Metro Area (MSA code 31080).

What is the population of ZIP code 90740?

The 2020 Census population of 90740 was 24,769 residents.

What is the median income in ZIP code 90740?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 90740 is about $69,803, with around 16% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.