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Dewey, IL ZIP code

The ZIP code for Dewey, Illinois is 61840. It is in Champaign County.

Population in these ZIPs
612
Avg. median income
$84,900population-weighted
Typical home value
$272,600population-weighted
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ZIP codes within 10 miles

Dewey, IL ZIP code list

Dewey, IL ZIP codes
ZIP codePopulationMedian incomeTypical home value
61840612$84,891$272,600

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 Dewey

Frequently asked questions

What is the ZIP code for Dewey, IL?

The ZIP code for Dewey, IL is 61840.

What county is Dewey, Illinois in?

Dewey ZIP codes are in Champaign County.