AtlasCounty_St. Clair


Welcome to St. Clair County

St. Clair County is located in the north central portion of the state and is home to more than 86,000 residents. The county boasts history, heritage, small town allure and big city amenities all rolled into one. Recreational activities abound, housing is affordable, and education is top-notch.
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Census Data

  • Population in 2014: 86,697
  • Housing units in 2014: 35,844
  • Median Household income 2010-14: $51,317
  • Land area in square miles in 2010: 632
  • Total number of firms in 2007: 6,061

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