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Downey, CA ZIP codes

Downey, California has 4 ZIP codes, including 1 PO Box ZIP. They are in Los Angeles County.

Population in these ZIPs
110,939
Avg. median income
$91,500population-weighted
Typical home value
$887,400population-weighted
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Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 miles

Downey, CA ZIP codes list

Downey, CA ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
90239 PO BoxLos Angeles County———
90240Los Angeles County24,853$101,904$933,500
90241Los Angeles County45,319$88,006$923,900
90242Los Angeles County40,767$89,075$818,800

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 Downey

Frequently asked questions

What is the ZIP code for Downey, CA?

Downey, CA has 4 ZIP codes: 90239, 90240, 90241 and 90242.

What county is Downey, California in?

Downey ZIP codes are in Los Angeles County.

Which Downey ZIP codes are PO Boxes?

90239 is a PO Box or single-organization ZIP code; it has no residential delivery area.