COUNTY WATER-SYSTEM LEDGER
Milwaukee, Wisconsin
EPA’s September 2026 export lists 14 active community water systems serving Milwaukee, Wisconsin, with 3 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 Milwaukee, Wisconsin
EPA associates 14 covered systems with Milwaukee, Wisconsin; their reported population-served values total 943,137 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 |
|---|---|---|---|
| Milwaukee WaterworksWI2410100 | 626,000 | Surface water | No current violation flagged |
| West Allis WaterworksWI2410595 | 63,240 | Surface water purchased | No current violation flagged |
| Wauwatosa WaterworksWI2410596 | 49,064 | Surface water purchased | No current violation flagged |
| North Shore Water CommissionWI2413515 | 35,598 | Surface water | No current violation flagged |
| Oak Creek WaterworksWI2410172 | 32,104 | Surface water | Other current violation flag |
| Franklin Water UtilityWI2410563 | 22,500 | Surface water purchased | Other current violation flag |
| South Milwaukee WaterworksWI2410144 | 21,340 | Surface water | No current violation flagged |
| Cudahy WaterworksWI2410169 | 18,659 | Surface water | No current violation flagged |
| Greendale WaterworksWI2410571 | 14,393 | Surface water purchased | No current violation flagged |
| Whitefish Bay WaterworksWI2410597 | 14,272 | Surface water purchased | No current violation flagged |
| Shorewood WaterworksWI2410607 | 13,535 | Surface water purchased | No current violation flagged |
| Glendale WaterworksWI2410168 | 12,883 | Surface water purchased | Current monitoring/reporting flag |
| Brown Deer WaterworksWI2410556 | 12,741 | Surface water purchased | No current violation flagged |
| Fox Point WaterworksWI2410584 | 6,808 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Milwaukee, Wisconsin
EPA classifies 14 systems serving Milwaukee, Wisconsin across 2 primary-source categories; Surface 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.