KY 20 merges to the right and passes through Idlewild.

KY 212 provides access to Interstate 275 east.

KY 20 (Petersburg Road) is the last exit on I-275 West in Kentucky before reaching the Indiana state line.

KY 20 descends into the Ohio Valley and comes to an end at the middle segment of KY 8 west of Villa Hills.

The entire route is in Boone County.