
New Castle
- County:
- Henry County
- County Seat:
- Yes
- Area (mi²):
- 0.41
- State:
- Kentucky
New Castle is a city located in Henry County, Kentucky. New Castle has a 2025 population of 897. It is also the county seat of .New Castle is currently growing at a rate of 0.34% annually and its population has increased by 1.7% since the most recent census, which recorded a population of 882 in 2020.
The average household income in New Castle is $50,113 with a poverty rate of 21.17%. The median age in New Castle is 49.4 years: 35.7 years for males, and 58.9 years for females.