Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CA/SEAL-BEACH

Seal Beach ZIP code, California

The ZIP code for Seal Beach, CA is 90740.

USPS city name
1 ZIP code
Overlapping the city
3 more
Population
24,722

Mail addressed to Seal Beach uses the ZIP code above. 3 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Seal Beach in numbers

About 24,722 people live in Seal Beach, in 12,837 households. The median household income is $85,964 a year, 13% below the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $486,800 (34% below the California median), and median gross rent is $2,649 a month. The median age is 61.5; 51.4% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 29 minutes.

Population24,722Seal Beach24,722
Households12,837Seal Beach12,837
Median age61.5Seal Beach61.5California37.9US 38.9
Median household income$85,964Seal Beach$85,964California$99,122US $80,734
Median home value$486,800Seal Beach$486,800California$734,700US $332,700
Median gross rent$2,649Seal Beach$2,649California$2,036US $1,413
Bachelor's degree or higher51.4%Seal Beach51.4%California37.1%US 35.7%
Mean commute28.8 minSeal Beach28.8 minCalifornia28.7 minUS 26.4 min
Population density2,187 / sq miSeal Beach2,187 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Seal Beach city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Seal Beach

ZIP codes with the USPS city name Seal Beach
ZIP City Type Population Median income Median home
90740 Seal Beach , CA Standard 24,254 $85,347 $484,100

Other ZIP codes overlapping Seal Beach

These ZIP codes cover part of Seal Beach but are addressed as somewhere else.

ZIP codes overlapping Seal Beach
ZIP City Type Population Median income Median home
90720 Los Alamitos , CA Standard 23,805 $135,851 $1,215,400
90743 Surfside , CA Standard 468 $170,966 $1,662,500
92649 Huntington Beach , CA Standard 35,346 $123,257 $1,131,500

Map of Seal Beach ZIP codes

90740

The ZIP codes of Seal Beach, CA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Seal Beach

The nearest larger towns are Westminster (89,860 people, 4.5 mi), Cypress (49,498 people, 4.8 mi) and Stanton (39,402 people, 5.5 mi).

Towns near Seal Beach
TownPopulationDistance
Rossmoor 11,532 2.4 mi
Los Alamitos 11,794 3.0 mi
Westminster 89,860 4.5 mi
Cypress 49,498 4.8 mi
Midway City 7,999 5.0 mi
Hawaiian Gardens 13,691 5.3 mi
Stanton 39,402 5.5 mi
Huntington Beach 195,240 5.5 mi
Long Beach 455,548 5.9 mi
Garden Grove 170,964 6.6 mi
Signal Hill 11,468 6.6 mi
La Palma 15,272 6.9 mi
Lakewood 79,850 7.0 mi
Fountain Valley 56,258 7.5 mi

More nearby: every ZIP code in Orange County · California ZIP codes

Cite this page

zipcodes.pro. “Seal Beach, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/seal-beach

Underlying data is public domain or openly licensed — sources, vintages and licences.