Sioux County
| Use attributes for filter ! | |
| Area | 1992 |
|---|---|
| Population | 34,860 (2017) |
| County seat | Orange City |
| Cities | Sioux Center |
| Orange City | |
| Rock Valley | |
| Hawarden | |
| Hull | |
| Colleges and universities | Dordt University |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2277982 |
About Sioux County
Sioux County is a county located in the U. S. state of Iowa. As of the 2010 census, the population was 33,704. Its county seat is Orange City.