
Killen
- County:
- Lauderdale County
- County Seat:
- No
- Area (mi²):
- 2.025
- State:
- Alabama
Killen is a town located in Lauderdale County, Alabama. Killen has a 2025 population of 1,039. Killen is currently growing at a rate of 0.19% annually and its population has increased by 0.97% since the most recent census, which recorded a population of 1,029 in 2020.
The average household income in Killen is $76,902 with a poverty rate of 8.57%. The median age in Killen is 37.9 years: 31.9 years for males, and 41.4 years for females.