
Letcher County
- State:
- Kentucky
- County Seat:
- Whitesburg
Letcher County's estimated 2025 population is 19,615 with a growth rate of -2.02% in the past year according to the most recent United States census data. Letcher County is the 61st largest county in Kentucky. The 2010 population was 24,534 and has seen a growth of -20.05% since that time.