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Dewey, OK ZIP code

The ZIP code for Dewey, Oklahoma is 74029. It is in Washington County.

Population in these ZIPs
5,331
Avg. median income
$57,800population-weighted
Typical home value
$145,800population-weighted
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ZIP codes within 10 miles

Dewey, OK ZIP code list

Dewey, OK ZIP codes
ZIP codePopulationMedian incomeTypical home value
740295,331$57,821$145,800

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

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Frequently asked questions

What is the ZIP code for Dewey, OK?

The ZIP code for Dewey, OK is 74029.

What county is Dewey, Oklahoma in?

Dewey ZIP codes are in Washington County.