Michigan — 9th District
119th Congress · 109 ZIP codes · Avg score 78/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 109 ZIP codes in Michigan's 9th District: the district earns a grade B (78/100). 190 EPA violations on record, 24 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Michigan's 9th District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 48094 | Washington | 99 | A | 1 |
| 2 | 48413 | Bad Axe | 99 | A | 1 |
| 3 | 48769 | Vassar | 99 | A | 1 |
| 4 | 48735 | Gagetown | 98 | A | 3 |
| 5 | 48746 | Millington | 98 | A | 2 |
| 6 | 48475 | Ubly | 97 | A | 1 |
| 7 | 48754 | Owendale | 96 | A | 3 |
| 8 | 48065 | Romeo | 95 | A | 0 |
| 9 | 48441 | Harbor Beach | 95 | A | 0 |
| 10 | 48467 | Port Austin | 95 | A | 1 |
| 11 | 48731 | Elkton | 95 | A | 0 |
| 12 | 48061 | Port Huron | 94 | A | 2 |
| 13 | 48725 | Caseville | 94 | A | 2 |
| 14 | 48062 | Richmond | 93 | A | 12 (2 health) |
| 15 | 48040 | Marysville | 92 | A | 3 |
| 16 | 48051 | New Baltimore | 91 | A | 1 (1 health) |
| 17 | 48097 | Yale | 91 | A | 5 (1 health) |
| 18 | 48468 | Port Hope | 91 | A | 1 |
| 19 | 48005 | Armada | 90 | A | 5 (2 health) |
| 20 | 48059 | Fort Gratiot | 90 | A | 1 |
| 21 | 48723 | Caro | 90 | A | 5 |
| 22 | 48767 | Unionville | 90 | A | 0 |
| 23 | 48060 | Port Huron | 89 | A | 2 |
| 24 | 48041 | Memphis | 88 | A | 0 |
| 25 | 48042 | Macomb | 88 | A | 1 |
| 26 | 48044 | Macomb | 88 | A | 1 |
| 27 | 48744 | Mayville | 87 | A | 2 |
| 28 | 48048 | New Haven | 86 | A | 2 (1 health) |
| 29 | 48063 | Columbus | 86 | A | 2 (1 health) |
| 30 | 48741 | Kingston | 86 | A | 2 |
| 31 | 48768 | Vassar | 85 | A | 1 |
| 32 | 48014 | Capac | 84 | B | 6 |
| 33 | 48039 | Marine City | 84 | B | 2 (1 health) |
| 34 | 48726 | Cass City | 84 | B | 3 |
| 35 | 48755 | Pigeon | 84 | B | 2 |
| 36 | 48095 | Washington | 83 | B | 1 |
| 37 | 48306 | Rochester | 83 | B | 0 |
| 38 | 48428 | Dryden | 83 | B | 1 |
| 39 | 48434 | Forestville | 83 | B | 0 |
| 40 | 48453 | Marlette | 83 | B | 0 |
| 41 | 48461 | North Branch | 83 | B | 0 |
| 42 | 48701 | Akron | 83 | B | 6 |
| 43 | 48359 | Lake Orion | 82 | B | 3 |
| 44 | 48360 | Lake Orion | 82 | B | 3 |
| 45 | 48361 | Lake Orion | 82 | B | 3 |
| 46 | 48362 | Lake Orion | 82 | B | 3 |
| 47 | 48421 | Columbiaville | 82 | B | 2 |
| 48 | 48422 | Croswell | 82 | B | 2 |
| 49 | 48426 | Decker | 82 | B | 2 (1 health) |
| 50 | 48047 | New Baltimore | 81 | B | 1 (1 health) |
Overview
Michigan's 9th District encompasses 109 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (78/100).
190 EPA violations have been recorded across this district's water systems. 24 are health-based violations. About 58% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Surface Water Treatment Rule - 46 violations
- Consumer Confidence Report Rule - 26 violations
- Total Trihalomethanes (TTHM) - 25 violations
- Barium - 23 violations
- Stage 1 DBP Rule - 22 violations
Housing Context
Homes in this district were built on average around 1976 (~50 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 109 ZIP codes in Michigan's 9th District.