Population: 16,566
County: Greenville
Major Employers: Mallinckrodt Pharmaceuticals, Greenville University, & Greenville Municipal Airport
Our Region
United & Diverse
15 COUNTIES, ONE REGION
The 15-county, bi-state St. Louis region is one of the largest regional economies in the U.S. Each county offers a unique geography, industry, and population mix, making St. Louis too one of the most economically diverse metro areas — all located at the geographic and population centers of the U.S.
Warren
Lincoln
Franklin
Jefferson
St. Louis City
St. Louis
Calhoun
Jersey
Macoupin
Madison
Bond
Clinton
St. Clair
Monroe
St. Charles
15 COUNTIES, ONE REGION
The 15-county, bi-state St. Louis region is one of the largest regional economies in the U.S. Each county offers a unique geography, industry, and population mix, making St. Louis too one of the most economically diverse metro areas — all located at the geographic and population centers of the U.S.
Population: 4,360
County: Hardin
Major Employers: Brussels Historic District, McCully Heritage Project, & Kamaroo Farms
Population: 36,909
County: Caryle
Major Employers: Murray Developmental Center, Kaskaskia Community College, & Maschhoff LLC, and Arrow Group.
Population: 105,879
County: Union
Major Employers: PLZ Aeroscience Corporation, East Central College, & Mercy Hospital Washington
Population: 229,336
County: Hillsboro
Major Employers: Jefferson College, NGA – Arnold Campus, & Mercy Hospital Jefferson
Population: 21,246
County: Jerseyville
Major Employers: Principia College, Jersey Community Hospital, & the Historic City of Grafton
Population: 63,155
County: Troy
Major Employers: Ranken Technical College, Mercy Hospital Lincoln, & Toyota Motor Manufacturing
Population: 44,245
County: Carlinville
Major Employers: Blackburn College, Zelmer Memorial Airpark, & Community Hospital of Staunton
Population: 263,864
County: Edwardsville
Major Employers: Amazon Inc., U.S. Steel, & Phillips 66 Wood River Refinery
Population: 35,033
County: W
Major Employers: Luhr Brothers, Inc., Budnick Converting, & EMCO Chemical Packaging
Population: 413,803
County: Saint Charles
Major Employers: General Motors Wentzville, Amazon, & MEMC
Population: 252,761
County: Belleville
Major Employers: Scott Airforce Base, Hospital Sisters Health System, & Southwestern Illinois College
Population: 990,414
County: Clayton
Major Employers: Boeing, Danforth Plant Science Center, & World Wide Technology
Population: 586,578
County: St. Louis
Major Employers: Cortex, Amren, & BJC Healthcare
Population: 37,260
County: Warrenton
Major Employers: Ameriwood Corporation, Innsbrook Corporation, & American Food Groups
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