
Columbus Junction
- County:
- Louisa County
- County Seat:
- No
- Area (mi²):
- 2.147
- State:
- Iowa
Columbus Junction is a city located in Louisa County, Iowa. Columbus Junction has a 2025 population of 1,731. Columbus Junction is currently declining at a rate of -1.14% annually and its population has decreased by -5.41% since the most recent census, which recorded a population of 1,830 in 2020.
The average household income in Columbus Junction is $96,307 with a poverty rate of 9.48%. The median age in Columbus Junction is 34.4 years: 32.5 years for males, and 37.4 years for females.