COUNTY WATER-SYSTEM LEDGER
Sioux, Iowa
EPA’s September 2026 export lists 6 active community water systems serving Sioux, Iowa, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Sioux, Iowa
EPA associates 6 covered systems with Sioux, Iowa; their reported population-served values total 30,105 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Sioux Center Municipal Water DepartmentIA8486053 | 8,231 | Ground water | No current violation flagged |
| Orange City Municipal Water DepartmentIA8474097 | 6,267 | Ground water | No current violation flagged |
| Southern Sioux County Rural WaterIA8400733 | 5,420 | Ground water | No current violation flagged |
| Rock Valley Water SupplyIA8482096 | 4,059 | Ground water | No current violation flagged |
| Rural Water System #1IA8400722 | 3,428 | Groundwater under influence of surface water | No current violation flagged |
| Hawarden Water SupplyIA8434040 | 2,700 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Sioux, Iowa
EPA classifies 6 systems serving Sioux, Iowa across 2 primary-source categories; Ground water is the largest category with 5 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.