ZIP Code 57775
About Quinn
Quinn is a town on U.S. Route 14 in Pennington County, South Dakota, United States. The population was 63 at the 2020 census. The town is the home of the Badlands Observatory, located in the former community hospital.
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Area Profile
US Census (ACS 5-year · Gazetteer)
396
population
$95,341
median household income
1
people / sq mi
$179,200
median home value
32.3
median age
133
housing units
97
households
291.3
land area (sq mi)