Kentucky Route 210 is part of a major route from the Elizabethtown Metropolitan Area to South Central Kentucky region, and in particular to Lake Cumberland and Green River Lake.

From Elizabethtown to Hodgenville, KY 210 is a local use secondary route running next to the four lane KY 61. South of Hodgenville it becomes the primary route to Campbellsville.

The route is 38.245 miles (61.549 km) long, with 4.256 miles (6.849 km) located in Hardin County, 16.613 miles (26.736 km) located in Larue County, 0.750 miles (1.207 km) located in Green County, and 16.626 miles (26.757 km) in Taylor County.