County · Wisconsin
Milwaukee County, Wisconsin: drinking water records
This overview covers 36 ZIP codes and 17 community water systems in Milwaukee County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Oak Creek Waterworks WI2410172 | 32,104 | 120 | 0 | 5 | 2 ppb |
| Milwaukee Waterworks WI2410100 | 626,000 | 240 | 0 | 0 | 5.3 ppb |
| West Allis Waterworks WI2410595 | 63,240 | 120 | 0 | 0 | 2.4 ppb |
| Wauwatosa Waterworks WI2410596 | 49,064 | 120 | 0 | 0 | 8.4 ppb |
| North Shore Water Commission WI2413515 | 35,598 | 120 | 0 | 0 | 11 ppb |
| Franklin Water Utility WI2410563 | 22,500 | 120 | 0 | 0 | 3 ppb |
| South Milwaukee Waterworks WI2410144 | 21,340 | 120 | 0 | 0 | 7.7 ppb |
| Cudahy Waterworks WI2410169 | 18,659 | 120 | 0 | 0 | 13 ppb |
| Greendale Waterworks WI2410571 | 14,393 | 120 | 0 | 0 | 0.3 ppb |
| Whitefish Bay Waterworks WI2410597 | 14,272 | 120 | 0 | 0 | 4.7 ppb |
| Shorewood Waterworks WI2410607 | 13,535 | 120 | 0 | 0 | 3.2 ppb |
| Glendale Waterworks WI2410168 | 12,883 | 120 | 0 | 0 | 1.7 ppb |
| Brown Deer Waterworks WI2410556 | 12,741 | 120 | 0 | 0 | 0.9 ppb |
| Fox Point Waterworks WI2410584 | 6,808 | 120 | 0 | 0 | 7.4 ppb |
| Robert William Park Water Association INC WI2410589 | 1,065 | 0 | 0 | 0 | 2.1 ppb |
| Whitnall Garden Apartments WI2410918 | 200 | 0 | 0 | 0 | 1.6 ppb |
| Meadows Condominiums Assoc Ltd WI2413464 | 50 | 0 | 0 | 0 | 1.0 ppb |
ZIP reports in Milwaukee County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.