ZIP Code 62365
About Plainville
Plainville is a village in Adams County, Illinois, United States. The population was 271 at the 2020 census. It is part of the Quincy, IL–MO Micropolitan Statistical Area.
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Area Profile
US Census (ACS 5-year · Gazetteer)
421
population
$75,938
median household income
15
people / sq mi
$122,900
median home value
$688
median gross rent
57.4
median age
261
housing units
195
households
27.4
land area (sq mi)