Logan
- County:
- Harrison County
- County Seat:
- Yes
- Area (mi²):
- 0.991
- State:
- Iowa
Logan is a city located in Harrison County, Iowa. Logan has a 2026 population of 1,351. It is also the county seat of Harrison County. Logan is currently declining at a rate of 0% annually and its population has decreased by -2.45% since the most recent census, which recorded a population of 1,385 in 2020.