Lyon County | |
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![]() Lyon County Courthouse in Eddyville, Kentucky. | |
![]() Location within the U.S. state of Kentucky | |
![]() Kentucky's location within the U.S. | |
Coordinates: 37°03′32″N 88°06′49″W / 37.058964°N 88.113643°W | |
Country | ![]() |
State | ![]() |
Founded | 1854 |
Named for | Chittenden Lyon |
Seat | Eddyville |
Largest city | Eddyville |
Area | |
• Total | 257 sq mi (670 km2) |
• Land | 214 sq mi (550 km2) |
• Water | 43 sq mi (110 km2) 17% |
Population (2020) | |
• Total | 8,680 |
• Estimate (2023) | 9,187 ![]() |
• Density | 34/sq mi (13/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Congressional district | 1st |
Website | www |
Lyon County is a county located in the U.S. state of Kentucky. As of the 2020 census, the population was 8,680.[1] Its county seat is Eddyville.[2] The county was formed from Caldwell County, Kentucky in 1854 and named for former Congressman Chittenden Lyon.[3][4]