
Seymour
- County:
- Jackson County
- County Seat:
- No
- Area (mi²):
- 12.132
- State:
- Indiana
Seymour is a city located in Jackson County, Indiana. Seymour has a 2025 population of 21,690. Seymour is currently growing at a rate of 0.06% annually and its population has increased by 0.28% since the most recent census, which recorded a population of 21,629 in 2020.
The average household income in Seymour is $77,047 with a poverty rate of 14.42%. The median age in Seymour is 33.3 years: 29.4 years for males, and 37.4 years for females.