
Little Sioux
- County:
- Harrison County
- County Seat:
- No
- Area (mi²):
- 0.375
- State:
- Iowa
Little Sioux is a city located in Harrison County, Iowa. Little Sioux has a 2025 population of 172. Little Sioux is currently growing at a rate of 0.58% annually and its population has increased by 2.99% since the most recent census, which recorded a population of 167 in 2020.
The average household income in Little Sioux is $44,106 with a poverty rate of 27.87%. The median age in Little Sioux is 59.3 years: 49.3 years for males, and 59.9 years for females.