Kentucky Route 1031 (KY 1031) is a 3.203-mile-long (5.155 km) state highway in Muhlenberg County, Kentucky.

From the intersection of U.S. Route 431 (US 431), US 62, and KY 70, KY 1031 follows the original US 431 alignment through downtown Central City.

[2] The route was originally an alignment of US 431 in downtown Central City, some of which was co-signed with KY 70.

However, in 2011, it was rerouted to run concurrently with US 62 west and onto the former KY 189 Bypass (which was also originally the US 431 and KY 70 Truck routes) due to the low-clearance bridge carrying the Paducah and Louisville Railroad over the street in the central business district.

[citation needed] The entire route is in Muhlenberg County.