Williamstown is a home-rule-class city in Grant and Pendleton counties in the U.S. state of Kentucky. Landmarks include Grant County and Ark Encounter. Williamstown is the birthplace of Arnie Risen, basketball player.
- CountyGrant County
- Population3,894 (2020 U.S. Census)

































Grant County
Ark Encounter
Williamstown Lake
A view of Williamstown