Wisconsin — 7th District
119th Congress · 221 ZIP codes · Avg score 67/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 221 ZIP codes in Wisconsin's 7th District: the district earns a grade C (67/100). 673 EPA violations on record, 104 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Wisconsin's 7th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 54005 | Clear Lake | 83 | B | 0 |
| 2 | 54009 | Dresser | 83 | B | 0 |
| 3 | 54422 | Curtiss | 83 | B | 1 |
| 4 | 54425 | Dorchester | 83 | B | 0 |
| 5 | 54437 | Greenwood | 83 | B | 0 |
| 6 | 54446 | Loyal | 83 | B | 0 |
| 7 | 54451 | Medford | 83 | B | 1 |
| 8 | 54488 | Unity | 83 | B | 1 |
| 9 | 54498 | Withee | 83 | B | 0 |
| 10 | 54538 | Lac Du Flambeau | 83 | B | 0 |
| 11 | 54539 | Lake Tomahawk | 83 | B | 0 |
| 12 | 54552 | Park Falls | 83 | B | 0 |
| 13 | 54566 | Wabeno | 83 | B | 0 |
| 14 | 54727 | Cadott | 83 | B | 0 |
| 15 | 54757 | New Auburn | 83 | B | 1 |
| 16 | 54768 | Stanley | 83 | B | 1 |
| 17 | 54810 | Balsam Lake | 83 | B | 0 |
| 18 | 54814 | Bayfield | 83 | B | 1 |
| 19 | 54829 | Cumberland | 83 | B | 0 |
| 20 | 54832 | Drummond | 83 | B | 0 |
| 21 | 54835 | Exeland | 83 | B | 0 |
| 22 | 54837 | Frederic | 83 | B | 0 |
| 23 | 54858 | Milltown | 83 | B | 0 |
| 24 | 54859 | Minong | 83 | B | 0 |
| 25 | 54876 | Stone Lake | 83 | B | 1 |
| 26 | 54889 | Turtle Lake | 83 | B | 0 |
| 27 | 54893 | Webster | 83 | B | 0 |
| 28 | 54895 | Weyerhaeuser | 83 | B | 0 |
| 29 | 53950 | New Lisbon | 82 | B | 2 (1 health) |
| 30 | 54020 | Osceola | 82 | B | 6 (1 health) |
| 31 | 54405 | Abbotsford | 82 | B | 2 (1 health) |
| 32 | 54433 | Gilman | 82 | B | 2 |
| 33 | 54442 | Irma | 82 | B | 2 |
| 34 | 54452 | Merrill | 82 | B | 6 (1 health) |
| 35 | 54480 | Stetsonville | 82 | B | 8 (1 health) |
| 36 | 54501 | Rhinelander | 82 | B | 5 (1 health) |
| 37 | 54520 | Crandon | 82 | B | 3 (1 health) |
| 38 | 54521 | Eagle River | 82 | B | 7 (1 health) |
| 39 | 54527 | Glidden | 82 | B | 3 |
| 40 | 54536 | Iron Belt | 82 | B | 1 (1 health) |
| 41 | 54537 | Kennan | 82 | B | 4 (1 health) |
| 42 | 54547 | Mercer | 82 | B | 2 |
| 43 | 54548 | Minocqua | 82 | B | 10 (1 health) |
| 44 | 54550 | Montreal | 82 | B | 3 (1 health) |
| 45 | 54554 | Phelps | 82 | B | 2 |
| 46 | 54556 | Prentice | 82 | B | 2 |
| 47 | 54563 | Tony | 82 | B | 8 (1 health) |
| 48 | 54611 | Alma Center | 82 | B | 3 (1 health) |
| 49 | 54646 | Necedah | 82 | B | 5 (1 health) |
| 50 | 54733 | Dallas | 82 | B | 13 (1 health) |
Overview
Wisconsin's 7th District encompasses 221 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (67/100).
673 EPA violations have been recorded across this district's water systems. 104 are health-based violations. About 47% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Stage 1 DBP Rule - 132 violations
- Lead and Copper Rule - 110 violations
- Surface Water Treatment Rule - 104 violations
- Stage 2 DBP Rule - 96 violations
- Consumer Confidence Report Rule - 91 violations
Housing Context
Homes in this district were built on average around 1977 (~49 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 6 ZIP codes in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 221 ZIP codes in Wisconsin's 7th District.