STATE REPORT MI 436 HEALTH VIOLATIONS

Michigan Water: 2.6K Violations — 1167 ZIPs

1167 ZIP codes · 1019 water systems · IPC plumbing code · Updated 2026-06-03

Data: EPA SDWIS, NWS, State plumbing boards, Rewiring America Last verified: 2026-06-03

1167
ZIP Codes
1019
Water Systems
624
ZIPs with Violations
IPC
Plumbing Code
B · 74
Avg Safety Score
20
ZIPs Exceeding Lead Limit
11%
High Radon Risk (Zone 1)
#13
of 51 States
64%
ZIPs Rated A or B
53%
ZIPs with Violations
B
Michigan average: 74/100 — ranked #13 of 51 states. 7 points above the national average (67). 64% of ZIP codes scored A or B.

Within Michigan, EPA compliance data across water systems tells a largely positive story — the state's utilities show above-average adherence to federal standards, and health-based violations are recorded in only a small share of monitored areas statewide.

Score Distribution

How Michigan's 1167 ZIP codes are distributed across safety grades.

258
A
489
B
246
C
171
D
3
F
85-10070-8455-6940-540-39

Home Safety Scores by State

Loading map…
F (0-49) D (50-64) C (65-74) B (75-84) A (85+)

Data: EPA SDWIS, FEMA NFIP, EPA Radon, USGS Earthquake Hazards, NIFC Wildfire • 2026-06-03

Top 10 Safest ZIP Codes in Michigan

Highest Home Safety Scores in the state.

#ZIP CodeCityCountyScoreGrade
1 48090 WarrenMacomb 99 A
2 48094 WashingtonMacomb 99 A
3 48122 MelvindaleWayne 99 A
4 48397 WarrenMacomb 99 A
5 48413 Bad AxeHuron 99 A
6 48615 BreckenridgeGratiot 99 A
7 48621 FairviewOscoda 99 A
8 48641 MidlandMidland 99 A
9 48647 MioOscoda 99 A
10 48667 MidlandMidland 99 A

10 Lowest-Scoring ZIP Codes in Michigan

#ZIP CodeCityCountyScoreGradeViolations
1 49847 HermansvilleMenominee 28 F 30
2 49018 Battle CreekCalhoun 33 F 11
3 49016 Battle CreekCalhoun 33 F 11
4 49289 WestonLenawee 40 D 0
5 49287 TiptonLenawee 40 D 0
6 49283 Spring ArborJackson 40 D 0
7 49281 SomersetHillsdale 40 D 0
8 49279 Sand CreekLenawee 40 D 0
9 49271 PittsfordLenawee 40 D 0
10 49266 OsseoHillsdale 40 D 0

County Rankings

Water quality breakdown by county. 84 counties with data in Michigan.

Loading county map…
F (0-49) D (50-64) C (65-74) B (75-84) A (85+)

County-level aggregation of ZIP code safety scores • EPA SDWIS, FEMA NFIP, EPA Radon, USGS, NIFC

CountyAvg ScoreGradeZIPsBest ZIPWorst ZIP
St. Clair 78 B 19 48061 (94) 48028 (55)
Lapeer 75 B 10 48428 (83) 48464 (53)
Berrien 80 B 28 49115 (98) 49085 (60)
Macomb 87 A 40 48090 (99) 48023 (55)
Oakland 77 B 87 48070 (83) 48367 (53)
Washtenaw 60 C 21 48176 (69) 48115 (40)
Ransom 78 B 1 48033 (78) 48033 (78)
Wayne 79 B 94 48122 (99) 48081 (55)
Monroe 63 C 18 48160 (83) 48157 (45)
Livingston 80 B 10 48114 (83) 48116 (73)
Ingham 77 B 41 49285 (83) 49277 (53)
Missaukee 70 B 4 49651 (82) 49667 (66)
Genesee 76 B 39 48429 (83) 48440 (53)
Sanilac 73 B 17 48434 (83) 48472 (53)
Huron 86 A 13 48413 (99) 48445 (66)
Shiawassee 65 C 9 48872 (83) 48882 (53)
Saginaw 83 B 26 48787 (99) 48655 (65)
Tuscola 83 B 16 48769 (99) 48733 (65)
Gladwin 81 B 3 48612 (92) 48624 (64)
Bay 77 B 11 48611 (94) 48732 (66)
Gratiot 78 B 14 48615 (99) 48874 (66)
Clare 85 A 5 48622 (98) 48633 (66)
Midland 89 A 11 48641 (99) 48628 (66)
Oscoda 80 B 6 48621 (99) 48728 (66)
Roscommon 82 B 6 48653 (98) 48630 (66)
Ogemaw 82 B 4 48654 (98) 48656 (66)
Arenac 76 B 7 48703 (90) 48659 (65)
Alcona 64 C 6 48740 (81) 48762 (53)
Iosco 80 B 11 48739 (97) 48761 (66)
Isabella 90 A 7 48804 (98) 48896 (66)
Clinton 71 B 10 48853 (82) 48841 (53)
Van Buren 79 B 14 49064 (94) 49062 (66)
Ionia 72 B 13 48815 (83) 48887 (53)
Montcalm 63 C 26 48850 (83) 49656 (53)
Eaton 76 B 12 48813 (83) 48861 (53)
Kalamazoo 58 C 22 49053 (68) 49088 (40)
Allegan 86 A 18 49070 (99) 49335 (66)
Calhoun 49 D 17 49224 (69) 49018 (33)
Barry 70 B 9 49046 (83) 49035 (53)
Branch 62 C 5 49028 (70) 49029 (53)
St. Joseph 59 C 10 49091 (70) 49089 (40)
Cass 57 C 7 49112 (68) 49095 (40)
Jackson 55 C 15 49237 (70) 49283 (40)
Lenawee 53 D 20 49286 (70) 49289 (40)
Hillsdale 49 D 16 49274 (70) 49281 (40)
Kent 74 B 49 49302 (83) 49347 (53)
Newaygo 79 B 9 49413 (99) 49459 (66)
Lake 72 B 5 49304 (90) 49644 (66)
Mecosta 75 B 9 49332 (98) 49305 (65)
Ottawa 92 A 17 49401 (99) 49435 (73)
Muskegon 87 A 15 49440 (98) 49463 (66)
Mason 77 B 6 49454 (98) 49458 (66)
Oceana 85 A 6 49455 (99) 49436 (65)
Wexford 89 A 5 49668 (99) 49657 (66)
Grand Traverse 84 B 12 49637 (99) 49666 (66)
Antrim 67 C 11 49659 (83) 49673 (53)
Manistee 78 B 10 49614 (99) 49689 (66)
Benzie 85 A 8 49683 (97) 49640 (66)
Leelanau 68 C 8 49664 (83) 49674 (53)
Osceola 85 A 7 49677 (99) 49623 (66)
Kalkaska 73 B 3 49646 (88) 49680 (66)
Emmet 59 C 13 49740 (83) 49706 (49)
Cheboygan 73 B 8 49749 (98) 49791 (66)
Alpena 61 C 4 49707 (76) 49747 (53)
Montmorency 64 C 4 49709 (79) 49753 (53)
Chippewa 76 B 20 49784 (97) 49793 (66)
Charlevoix 69 C 5 49720 (83) 49796 (50)
Otsego 66 C 6 49734 (81) 49799 (53)
Crawford 81 B 3 49738 (88) 49733 (66)
Presque Isle 69 C 7 49776 (83) 49792 (53)
Luce 73 B 3 49868 (80) 49748 (66)
Mackinac 79 B 6 49757 (99) 49838 (66)
Dickinson 67 C 8 49802 (83) 49892 (53)
Keweenaw 68 C 4 49901 (83) 49950 (53)
Alger 65 C 11 49835 (83) 49895 (53)
Delta 80 B 12 49880 (98) 49894 (66)
Marquette 68 C 13 49879 (83) 49855 (46)
Menominee 60 C 12 49812 (83) 49847 (28)
Iron 72 B 9 49903 (82) 49964 (53)
Schoolcraft 87 A 4 49836 (98) 49840 (66)
Houghton 71 B 13 49913 (83) 49965 (53)
Baraga 58 C 8 49908 (81) 49970 (53)
Ontonagon 76 B 10 49910 (99) 49960 (62)
Gogebic 80 B 6 49947 (83) 49969 (72)

Most Common Contaminants in Michigan

Contaminant / RuleCategoryZIPs AffectedViolationsHealth Risk
Surface Water Treatment Rule Treatment Technique 325 489 No
Consumer Confidence Report Rule Reporting 235 440 Yes
Stage 1 DBP Rule Treatment Technique 208 362 Yes
Total Trihalomethanes (TTHM) Disinfection Byproducts 163 208 Yes
Stage 2 DBP Rule Treatment Technique 74 139 Yes
Haloacetic Acids (HAA5) Disinfection Byproducts 72 115 Yes
Lead and Copper Rule Treatment Technique 68 94 No
E. coli Microbiological 61 64 Yes

Overview

We track water quality, weather alerts, plumbing regulations, and energy rebates for 1167 ZIP codes across Michigan, covering 1019 community water systems that serve approximately 6,181,474 people.

624 of 1167 ZIP codes (53%) have recorded EPA violations. 436 health-based violations have been documented.

Plumbing Regulations

Michigan follows the International Plumbing Code (2021 edition).

  • Plumbing code: IPC (2021)
  • Homeowner DIY: Allowed with permit
  • Water heater permit: Required
  • Annual backflow test: Required

Full Michigan regulations →

Areas with Most Violations

ZIP Code City Safety Score Violations Health-Based System
49847 Hermansville F 30 6 Hermansville Housing Commission
48750 Oscoda A 23 3 Oscoda Township
48433 Flushing B 19 2 City of Flushing,
48438 Goodrich C 19 11 The Pines of Goodrich
49047 Dowagiac C 19 1 Dowagiac
49945 Lake Linden B 19 1 Lake Linden
48451 Linden B 18 2 City of Linden,
48442 Holly C 16 6 Holly, Village of
48463 Otisville B 16 1 Otisville, Village of
49022 Benton Harbor B 16 6 Benton Harbor

Areas with No Violations

ZIP Code City Safety Score System Population
48002 Allenton C MEMPHIS, CITY OF 1,084
48004 Anchorville B ONTARIO PLACE 248
48006 Avoca C YALE, CITY OF 1,900
48021 Eastpointe A City of Eastpointe, 32,442
48022 Emmett B MEMPHIS, CITY OF 1,084
48023 Fair Haven C NEW BALTIMORE, CITY OF 12,720
48025 Franklin D Southfield 71,739
48027 Goodells B ONTARIO PLACE 248
48028 Harsens Island C CLAY TOWNSHIP 9,866
48030 Hazel Park B Hazel Park 16,400

Home Safety Score

Average Home Safety Score for Michigan: B (74/100)

Lead & Copper

  • Average lead level (90th percentile): 0.0039 mg/L (EPA action level: 0.015 mg/L)
  • 20 ZIP codes exceed the EPA lead action level

Radon Risk

  • High risk (Zone 1): 133 ZIP codes (11%)
  • Moderate risk (Zone 2): 498 ZIP codes
  • Low risk (Zone 3): 535 ZIP codes

ZIP Code Reports for Michigan

Largest Communities

ZIP Code City Population Safety Grade Violations
48127 Dearborn Heights 912,687 A 12
48240 Redford 851,403 A 3
48205 Detroit 781,510 B 6
48239 Redford 779,664 B 3
48234 Detroit 767,274 B 6
48219 Detroit 754,461 B 6
48126 Dearborn 743,194 A 0
48204 Detroit 743,194 B 6
48210 Detroit 743,194 B 6
48228 Detroit 743,194 B 6
48223 Detroit 682,722 B 6
48235 Detroit 662,872 B 6
48211 Detroit 655,631 B 6
48212 Hamtramck 655,631 B 3
48236 Grosse Pointe 652,875 A 3
48224 Detroit 647,454 B 6
48225 Harper Woods 647,454 B 4
48203 Highland Park 642,195 A 2
48218 River Rouge 640,442 B 5
48201 Detroit 633,218 B 6

Lowest Safety Scores

ZIP Code City Score Grade Violations
49847 Hermansville 28 F 30
49016 Battle Creek 33 F 11
49018 Battle Creek 33 F 11
48115 Bridgewater 40 D 0
49014 Battle Creek 40 D 11

Highest Safety Scores

ZIP Code City Score Grade Violations
48090 Warren 99 A 0
48094 Washington 99 A 1
48122 Melvindale 99 A 1
48397 Warren 99 A 0
48413 Bad Axe 99 A 1

All 1167 ZIP Codes in Michigan

Data Sources

Updated daily.

Frequently Asked Questions

Is the water safe to drink in Michigan?

Michigan has 1019 community water systems serving 6,181,474 people across 1167 ZIP codes. There are 2,609 recorded violations, including 436 health-based. 624 of 1167 ZIP codes have at least one violation.

What plumbing code does Michigan follow?

Michigan follows the IPC plumbing code. DIY plumbing work is allowed for homeowners.

Is lead a concern in Michigan's drinking water?

20 ZIP codes in Michigan have lead levels exceeding the EPA action level of 0.015 mg/L.

What is the radon risk in Michigan?

11% of ZIP codes in Michigan fall in EPA Radon Zone 1 (highest risk).

Get safety alerts for Michigan

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Violations found — check filter options Free tool — no phone call required.