ZIP Code 62321
About Carthage
Carthage is a city in and the county seat of Hancock County, Illinois, United States. Its population was 2,490 as of the 2020 census. Carthage is best known for being the site of the 1844 killing of Joseph Smith, who founded the Church of Jesus Christ of Latter-Day Saints.
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Area Profile
US Census (ACS 5-year · Gazetteer)
3,682
population
$74,859
median household income
22
people / sq mi
$120,600
median home value
$677
median gross rent
50.0
median age
1,892
housing units
1,597
households
167.6
land area (sq mi)