
Trafalgar
- County:
- Johnson County
- County Seat:
- No
- Area (mi²):
- 2.56
- State:
- Indiana
Trafalgar is a town located in Johnson County, Indiana. Trafalgar has a 2025 population of 1,648. Trafalgar is currently growing at a rate of 2.68% annually and its population has increased by 14.84% since the most recent census, which recorded a population of 1,435 in 2020.
The average household income in Trafalgar is $95,242 with a poverty rate of 6.24%. The median age in Trafalgar is 37.7 years: 37 years for males, and 40.2 years for females.