Wisconsin — 5th District
119th Congress · 29 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-03
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03
Top Contaminants
ZIP Codes in This District
29 ZIP codes tracked in Wisconsin's 5th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 53002 | Allenton | 70 | B | 0 |
| 2 | 53058 | Nashotah | 70 | B | 0 |
| 3 | 53022 | Germantown | 69 | C | 5 (1 health) |
| 4 | 53037 | Jackson | 69 | C | 3 (1 health) |
| 5 | 53040 | Kewaskum | 69 | C | 0 |
| 6 | 53064 | North Lake | 69 | C | 3 (1 health) |
| 7 | 53086 | Slinger | 69 | C | 2 (1 health) |
| 8 | 53149 | Mukwonago | 69 | C | 10 (1 health) |
| 9 | 53146 | New Berlin | 68 | C | 1 |
| 10 | 53183 | Wales | 68 | C | 5 (2 health) |
| 11 | 53007 | Butler | 66 | C | 5 |
| 12 | 53069 | Okauchee | 66 | C | 0 |
| 13 | 53076 | Richfield | 66 | C | 0 |
| 14 | 53027 | Hartford | 65 | C | 0 |
| 15 | 53046 | Lannon | 64 | C | 2 |
| 16 | 53052 | Menomonee Falls | 64 | C | 1 |
| 17 | 53150 | Muskego | 64 | C | 9 (1 health) |
| 18 | 53153 | North Prairie | 62 | C | 5 |
| 19 | 53122 | Elm Grove | 59 | C | 6 (1 health) |
| 20 | 53051 | Menomonee Falls | 58 | C | 1 |
| 21 | 53151 | New Berlin | 58 | C | 1 |
| 22 | 53103 | Big Bend | 53 | D | 0 |
| 23 | 53029 | Hartland | 48 | D | 1 |
| 24 | 53056 | Merton | 40 | D | 0 |
| 25 | 53072 | Pewaukee | 40 | D | 49 (27 health) |
| 26 | 53078 | Rubicon | 40 | D | 0 |
| 27 | 53127 | Genesee Depot | 40 | D | 0 |
| 28 | 53090 | West Bend | 39 | F | 380 |
| 29 | 53095 | West Bend | 39 | F | 380 |
Overview
Wisconsin's 5th District serving an estimated 316,425 residents encompasses 29 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (59/100).
869 EPA violations have been recorded across this district's water systems. 36 are health-based violations. About 66% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Lead and Copper Rule — 25 violations
- Gross Alpha — 21 violations
- Stage 2 DBP Rule — 19 violations
- Stage 1 DBP Rule — 13 violations
- Surface Water Treatment Rule — 12 violations
Housing Context
Homes in this district were built on average around 1979 (~47 years old). Older homes may have lead pipes or solder — consider a water filter if your home predates 1986.
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 29 ZIP codes in Wisconsin's 5th District.