State FIPS Code: 31
County FIPS Code: 165
County FIPS Class: H1
County Description:
| County Office Name | County Office Description | County Office Phone |
|---|---|---|
| Sioux County Assessor | Sioux County Assessor | (308) 668 - 244 |
| Sioux County Mapping / GIS | Sioux County Mapping / GIS | |
| Sioux County Register of Deeds | Sioux County Register of Deeds | (308) 668 - 244 |
| Sioux County Treasurer | Sioux County Treasurer | (308) 668 - 242 |
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