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Los Alamitos, CA ZIP codes

Los Alamitos, California has 2 ZIP codes, including 1 PO Box ZIP. They are in Orange County.

Population in these ZIPs
23,805
Avg. median income
$135,900population-weighted
Typical home value
$1,562,600population-weighted
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ZIP codes within 10 miles

Los Alamitos, CA ZIP codes list

Los Alamitos, CA ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
90720Orange County23,805$135,851$1,562,600
90721 PO BoxOrange County———

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Los Alamitos

Frequently asked questions

What is the ZIP code for Los Alamitos, CA?

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

What county is Los Alamitos, California in?

Los Alamitos ZIP codes are in Orange County.

Which Los Alamitos ZIP codes are PO Boxes?

90721 is a PO Box or single-organization ZIP code; it has no residential delivery area.