
Greencastle
- County:
- Butler County
- County Seat:
- No
- Area (mi²):
- 58.955
- State:
- Kentucky
Greencastle is located in Butler County, Kentucky. Greencastle has a 2025 population of 1,722. Greencastle is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The average household income in Greencastle is $75,529 with a poverty rate of 6.85%. The median age in Greencastle is 45.7 years: 48.4 years for males, and 41.7 years for females.