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/LOS-ALAMITOS

Los Alamitos ZIP codes, California

Los Alamitos, CA has 2 ZIP codes: 90720 and 90721. The largest is 90720.

USPS city name
2 ZIP codes
Population
11,794

Los Alamitos in numbers

About 11,794 people live in Los Alamitos, in 4,414 households. The median household income is $97,155 a year, about the same as the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $1,061,900 (45% above the California median), and median gross rent is $2,365 a month. The median age is 37.2; 44.3% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 31 minutes.

Population11,794Los Alamitos11,794
Households4,414Los Alamitos4,414
Median age37.2Los Alamitos37.2California37.9US 38.9
Median household income$97,155Los Alamitos$97,155California$99,122US $80,734
Median home value$1,061,900Los Alamitos$1,061,900California$734,700US $332,700
Median gross rent$2,365Los Alamitos$2,365California$2,036US $1,413
Bachelor's degree or higher44.3%Los Alamitos44.3%California37.1%US 35.7%
Mean commute31.3 minLos Alamitos31.3 minCalifornia28.7 minUS 26.4 min
Population density2,943 / sq miLos Alamitos2,943 / sq mi

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

ZIP codes addressed as Los Alamitos

ZIP codes with the USPS city name Los Alamitos
ZIP City Type Population Median income Median home
90720 Los Alamitos , CA Standard 23,805 $135,851 $1,215,400
90721 Los Alamitos , CA No street area — — —

Map of Los Alamitos ZIP codes

The ZIP codes of Los Alamitos, 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 Los Alamitos

The nearest larger towns are Cypress (49,498 people, 2.0 mi), Hawaiian Gardens (13,691 people, 2.4 mi) and Seal Beach (24,722 people, 3.0 mi).

Towns near Los Alamitos
TownPopulationDistance
Rossmoor 11,532 1.2 mi
Cypress 49,498 2.0 mi
Hawaiian Gardens 13,691 2.4 mi
Seal Beach 24,722 3.0 mi
Stanton 39,402 3.9 mi
La Palma 15,272 3.9 mi
Lakewood 79,850 4.9 mi
Cerritos 47,867 4.9 mi
Westminster 89,860 4.9 mi
Artesia 15,889 5.0 mi
Buena Park 82,871 5.2 mi
Midway City 7,999 5.7 mi
Garden Grove 170,964 5.9 mi
Long Beach 455,548 6.2 mi

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

Cite this page

zipcodes.pro. “Los Alamitos, CA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ca/los-alamitos

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