Michigan — 1st District
119th Congress · 274 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 274 ZIP codes in Michigan's 1st District: the district earns a grade B (72/100). 430 EPA violations on record, 38 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Michigan's 1st District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 48621 | Fairview | 99 | A | 0 |
| 2 | 48647 | Mio | 99 | A | 0 |
| 3 | 49637 | Grawn | 99 | A | 0 |
| 4 | 49757 | Mackinac Island | 99 | A | 1 |
| 5 | 49910 | Bergland | 99 | A | 0 |
| 6 | 48653 | Roscommon | 98 | A | 3 |
| 7 | 48654 | Rose City | 98 | A | 5 (1 health) |
| 8 | 48661 | West Branch | 98 | A | 3 |
| 9 | 49749 | Indian River | 98 | A | 2 |
| 10 | 49836 | Germfask | 98 | A | 2 |
| 11 | 49880 | Rock | 98 | A | 2 |
| 12 | 48651 | Prudenville | 97 | A | 4 |
| 13 | 48739 | Hale | 97 | A | 4 |
| 14 | 48764 | Tawas City | 97 | A | 2 |
| 15 | 49683 | Thompsonville | 97 | A | 6 (2 health) |
| 16 | 49784 | Kincheloe | 97 | A | 1 |
| 17 | 49785 | Kincheloe | 97 | A | 1 |
| 18 | 49786 | Kincheloe | 97 | A | 1 |
| 19 | 49788 | Kincheloe | 97 | A | 1 |
| 20 | 49820 | Curtis | 97 | A | 13 (2 health) |
| 21 | 49616 | Benzonia | 96 | A | 3 |
| 22 | 49967 | Trout Creek | 96 | A | 6 |
| 23 | 49630 | Empire | 95 | A | 1 |
| 24 | 49685 | Traverse City | 95 | A | 1 |
| 25 | 49686 | Traverse City | 95 | A | 1 |
| 26 | 49829 | Escanaba | 95 | A | 0 |
| 27 | 49837 | Gladstone | 95 | A | 1 |
| 28 | 49854 | Manistique | 95 | A | 0 |
| 29 | 49878 | Rapid River | 95 | A | 1 |
| 30 | 49807 | Bark River | 93 | A | 5 |
| 31 | 48629 | Houghton Lake | 90 | A | 7 |
| 32 | 48703 | Au Gres | 90 | A | 1 |
| 33 | 48730 | East Tawas | 90 | A | 0 |
| 34 | 49684 | Traverse City | 90 | A | 1 |
| 35 | 49696 | Traverse City | 90 | A | 1 |
| 36 | 48763 | Tawas City | 88 | A | 2 |
| 37 | 48770 | Whittemore | 88 | A | 1 |
| 38 | 49617 | Beulah | 88 | A | 7 (1 health) |
| 39 | 49646 | Kalkaska | 88 | A | 0 |
| 40 | 49738 | Grayling | 88 | A | 1 |
| 41 | 49739 | Grayling | 88 | A | 1 |
| 42 | 49883 | Seney | 88 | A | 1 |
| 43 | 49925 | Ewen | 88 | A | 0 |
| 44 | 48750 | Oscoda | 87 | A | 23 (3 health) |
| 45 | 49613 | Arcadia | 87 | A | 0 |
| 46 | 49620 | Buckley | 87 | A | 6 (1 health) |
| 47 | 49635 | Frankfort | 87 | A | 1 |
| 48 | 49715 | Brimley | 87 | A | 3 |
| 49 | 49953 | Ontonagon | 87 | A | 1 |
| 50 | 49690 | Williamsburg | 86 | A | 2 |
Overview
Michigan's 1st District encompasses 274 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (72/100).
430 EPA violations have been recorded across this district's water systems. 38 are health-based violations. About 40% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Consumer Confidence Report Rule - 100 violations
- Surface Water Treatment Rule - 96 violations
- Stage 1 DBP Rule - 80 violations
- Total Trihalomethanes (TTHM) - 43 violations
- Stage 2 DBP Rule - 18 violations
Housing Context
Homes in this district were built on average around 1971 (~55 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 5 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 274 ZIP codes in Michigan's 1st District.