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ZIP code 61840: Dewey, IL

61840 is a ZIP code in Dewey, Illinois, mainly in Champaign County, part of the Champaign-Urbana, IL metro area. About 612 people live here.

Population
612
Median household income
$84,891
Typical home value
$272,600ACS median value
Median rent
—gross, per month
Median age
58.9
Homeowners
100%of occupied homes
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Shaded: ZIP code 61840's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 61840 details

CityDewey
StateIllinois
CountyChampaign County
Metro areaChampaign-Urbana, IL
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area31.1 sq mi, plus 0.1 sq mi of water
Population density20 people per sq mi
Bachelor's degree or higher32.9% of adults 25+
Average commute28.8 minutes
Center coordinates40.29887, -88.30026

ZIP codes near 61840

ZIP codeCityDistancePopulation
61843Fisher, IL4.1 mi1,934
61845Foosland, IL7.2 mi233
61866Rantoul, IL7.5 mi13,470
61853Mahomet, IL8.0 mi14,831
61878Thomasboro, IL9.0 mi1,127
60933Elliott, IL11.4 mi258
61822Champaign, IL11.4 mi27,642
60949Ludlow, IL11.7 mi564

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

Buying a home in 61840?

A typical home in ZIP code 61840 is worth about $272,600 (ACS median value). The median household here earns $84,891 a year. See what buying here would cost per month, with Illinois average taxes and insurance filled in.

Monthly payment for a $272,600 homeWhat can a $84,891 income afford?Rental property numbers

About ZIP code 61840

What city is ZIP code 61840?

ZIP code 61840 is in Dewey, IL, in Champaign County.

What county is ZIP code 61840 in?

61840 is mainly in Champaign County, Illinois.

What is the population of ZIP code 61840?

About 612 people live in ZIP code 61840, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 61840 in?

61840 is in Central Time (UTC−6). It observes daylight saving time.