Sangamon County, Illinois

Sangamon County is a county located near the center of the U.S. state of Illinois. According to the 2020 census, it had a population of 196,343. Its county seat... Wikipedia

  • Founded:  1821
  • Named for:  Sangamon River
  • Seat:  Springfield
  • Largest city:  Springfield
  • Total:  877 sq mi (2,271.42 km²)
  • Land:  868 sq mi (2,248.11 km²)
  • Water:  8.7 sq mi (22.53 km²), 1.0
  • Website:  www.co.sangamon.il.us
  • Data source:  DuckDuckGo