
Decker
- County:
- Knox County
- County Seat:
- No
- Area (mi²):
- 0.188
- State:
- Indiana
Decker is a town located in Knox County, Indiana. Decker has a 2025 population of 201. Decker is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 201 in 2020.
The average household income in Decker is $78,655 with a poverty rate of 11.98%. The median age in Decker is 52.7 years: 52.5 years for males, and 55.2 years for females.