
Millstone
- County:
- Letcher County
- County Seat:
- No
- Area (mi²):
- 0.214
- State:
- Kentucky
Millstone is a CDP located in Letcher County, Kentucky. Millstone has a 2025 population of 814. Millstone is currently growing at a rate of 5.99% annually and its population has increased by 72.09% since the most recent census, which recorded a population of 473 in 2020.
The average household income in Millstone is $35,854 with a poverty rate of 42.14%. The median age in Millstone is 34.9 years: 53.7 years for males, and 32.4 years for females.