Madison County | |
---|---|
Coordinates: 37°29′N 90°20′W / 37.48°N 90.34°W | |
Country | United States |
State | Missouri |
Founded | December 14, 1818 |
Named for | James Madison |
Seat | Fredericktown |
Largest city | Fredericktown |
Area | |
• Total | 498 sq mi (1,290 km2) |
• Land | 494 sq mi (1,280 km2) |
• Water | 3.2 sq mi (8 km2) 0.6% |
Population (2020) | |
• Total | 12,626 |
• Density | 25/sq mi (10/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Congressional district | 8th |
Website | madisoncountymo |
Madison County is a county located in the Lead Belt region of the U.S. state of Missouri. As of the 2020 census, the population was 12,626.[1] Its county seat and largest city is Fredericktown.[2] The county was officially organized on December 14, 1818, and was named after President James Madison.[3] Mining has been a key industry in this area with Madison County recorded as having the oldest lead mine west of the Mississippi River.