Allen
- County:
- Floyd County
- County Seat:
- No
- Area (mi²):
- 0.179
- State:
- Kentucky
Allen is a city located in Floyd County, Kentucky. Allen has a 2026 population of 167. Allen is currently declining at a rate of -1.76% annually and its population has decreased by -6.7% since the most recent census, which recorded a population of 179 in 2020.