Macoupin County Construction Logo

Macoupin County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 44,967. The county seat is Carlinville. The primary industry is agriculture, consisting of crops of corn, soybeans, and some wheat.
  • Country: United States
  • State: Illinois
  • Founded: 1829
  • Named for: Macoupin Creek
  • Seat: Carlinville
  • Largest city: Carlinville
  • Congressional district: 13th
Data from: en.wikipedia.org