Michigan — 12th District
119th Congress · 27 ZIP codes · Avg score 76/100 · Grade B · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 27 ZIP codes in Michigan's 12th District: the district earns a grade B (76/100). 84 EPA violations on record, 18 health-based.
Top Contaminants
ZIP Codes in This District
27 ZIP codes tracked in Michigan's 12th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 48120 | Dearborn | 93 | A | 0 |
| 2 | 48128 | Dearborn | 93 | A | 0 |
| 3 | 48185 | Westland | 92 | A | 4 |
| 4 | 48186 | Westland | 92 | A | 4 |
| 5 | 48126 | Dearborn | 88 | A | 0 |
| 6 | 48127 | Dearborn Heights | 86 | A | 12 (1 health) |
| 7 | 48240 | Redford | 86 | A | 3 (1 health) |
| 8 | 48124 | Dearborn | 83 | B | 0 |
| 9 | 48034 | Southfield | 79 | B | 5 |
| 10 | 48086 | Southfield | 79 | B | 5 |
| 11 | 48033 | Southfield | 78 | B | 5 |
| 12 | 48239 | Redford | 76 | B | 3 (1 health) |
| 13 | 48075 | Southfield | 74 | B | 5 |
| 14 | 48076 | Southfield | 74 | B | 5 |
| 15 | 48219 | Detroit | 72 | B | 6 (3 health) |
| 16 | 48223 | Detroit | 72 | B | 6 (3 health) |
| 17 | 48227 | Detroit | 72 | B | 6 (3 health) |
| 18 | 48228 | Detroit | 72 | B | 6 (3 health) |
| 19 | 48235 | Detroit | 72 | B | 6 (3 health) |
| 20 | 48150 | Livonia | 70 | B | 0 |
| 21 | 48152 | Livonia | 70 | B | 0 |
| 22 | 48154 | Livonia | 70 | B | 0 |
| 23 | 48135 | Garden City | 68 | C | 1 |
| 24 | 48141 | Inkster | 68 | C | 2 |
| 25 | 48151 | Livonia | 66 | C | 0 |
| 26 | 48153 | Livonia | 66 | C | 0 |
| 27 | 48025 | Franklin | 53 | D | 0 |
Overview
Michigan's 12th District encompasses 27 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (76/100).
84 EPA violations have been recorded across this district's water systems. 18 are health-based violations. About 63% 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 - 30 violations
- Chlorite - 15 violations
- Total Trihalomethanes (TTHM) - 8 violations
- Stage 1 DBP Rule - 8 violations
- Total Organic Carbon - 5 violations
Housing Context
Homes in this district were built on average around 1959 (~67 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 7 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 27 ZIP codes in Michigan's 12th District.