ZIP Code 62828
About Dahlgren
Dahlgren is a village in Hamilton County, Illinois, United States. The population was 504 at the 2020 census. It is part of the Mount Vernon Micropolitan Statistical Area.
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Area Profile
US Census (ACS 5-year · Gazetteer)
1,642
population
$64,811
median household income
20
people / sq mi
$112,700
median home value
$439
median gross rent
39.0
median age
695
housing units
628
households
82.7
land area (sq mi)