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Counties → Wisconsin

Milwaukee County, Wisconsin

SDWIS compliance plate

Sheet WI079 · Milwaukee County 85 sys · 2,602 viol · #59/3254

VIOL-SEVERE · HEALTH-LOW · RANK-TOP · ABOVE-PEER · PFAS-CLEAN · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 95.3% flagged
  • HEALTH-LOW 14.0% health
  • RANK-TOP #59/3254
  • ABOVE-PEER +1.2 pp
  • PFAS-CLEAN 0.0% detect
  • SRC-GW GW lead 84%
  • SYS-MID 85 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Door County ( -1.2 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Milwaukee County ranks #59 of 3,254 counties by people served, and #1 of 71 counties in Wisconsin. See methodology · corpus placement.

Milwaukee County standing, mid-flagged corpus third

Flagged-system rate 95.3% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 14.0% is health-based share in the middle third (≤ 24.5%) . UCMR5 detect rate 0.0% is UCMR5 detect rate at or below the tested-pool lower third (≤ 0.0%) . Population served ranks #59 of 3,254 · #1 of 71 in Wisconsin.

Flagged-rate neighbourhood around Milwaukee County

Lowest/highest poles plus in-state counties nearest Milwaukee County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Bayfield · lowest Crawford · near 52.1% 89.5% 91.8% 93.8% 94.1% 95.3%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Milwaukee Waterworks 626,000 40 Clean
West Allis Waterworks 63,240 10 Clean
Wauwatosa Waterworks 49,064 13 Clean
North Shore Water Commission 35,598 36 Clean
Oak Creek Waterworks 32,104 143 Clean
Franklin Water Utility 22,500 200 Clean
South Milwaukee Waterworks 21,340 96 Clean
Cudahy Waterworks 18,659 63 Clean
Greendale Waterworks 14,393 19 Clean
Whitefish Bay Waterworks 14,272 15 Clean
Shorewood Waterworks 13,535 30 Clean
Glendale Waterworks 12,883 5 Clean
Brown Deer Waterworks 12,741 80 Clean
Fox Point Waterworks 6,808 10 Clean
Robert William Park Water Association Inc 1,065 56 -
Country Dale School 523 19 -
Emanuel Bne Jeshrun Center 509 38 -
Hales Happiness Subdivision 400 93 -
St Johns Ev Lutheran Church Oak Creek 400 16 -
Schlitz Audubon Nature Center 399 12 -
Milwaukee Country Club Clubhouse 320 22 -
Mulligans Irish Pub & Grill 312 4 -
Whitnall Park Golf Course Clubhouse 308 8 -
On the Border 303 19 -
Indian Hill School 285 78 -
St Martin of Tours Cong 258 299 -
Xpo Logistics 232 27 -
Emanuel United Church of Christ 218 19 -
Crystal Ridge 215 25 -
Whitnall Park Golf Service Building 210 6 -
Country Lanes 203 37 -
Whitnall Garden Apartments 200 43 -
Pryor Ave Iron Well 200 3 -
Polonia Sports Club 200 8 -
Sandras on the Park 165 13 -
Wehr Nature Center 160 5 -
Wisconsin Country Club Tee 5 155 2 -
Open Pantry 154 26 -
Oakwood Park Golf Course 142 5 -
Crossway Church North Shore Campus 121 26 -
Franklin MHP 118 55 -
Embassy Motel 105 13 -
Bowery Bar 104 18 -
St Christophers Episcopal Ch 103 11 -
Milwaukee Country Club Tennis Building 102 4 -
Whitnall Park Golf Tee 5 100 0 -
Brown Deer Park Comfort Station 100 11 -
Waste Management Southeast Wisconsin 99 4 -
Whitnall Park Lutheran Church 75 37 -
Falk Park Well 75 2 -

Compare beyond Wisconsin

Mid-flagged peers for Milwaukee County

Cross-state counties nearest Milwaukee County on flagged-system share (95.3%) and cumulative violation count (2,602). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.