Macomb County, Michigan
40 ZIP codes · Avg score 87/100 · Grade A · Updated 2026-06-03
Across Macomb County's 40 ZIP codes, EPA compliance data shows above-average performance — violation rates are minimal, none of the county's systems have triggered health-based MCL exceedances in recent cycles, and the county's scores have stayed above the national baseline across every recent reporting period.
How Macomb County Compares
How Macomb County Compares
Macomb County scores 13 points above the Michigan state average (74/100) and 19 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Macomb County, Michigan
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.7 (asthma 11.3%, diabetes 11.4%)
Estimated additional annual cost per homeowner: $1,425, driven primarily by flood
Infrastructure: 0.34% avg pipe failure probability, 21% of ZIPs at high risk
64% of homes built before 1978 (lead paint era)
Violation History (2022–2025)
↑ Worsening trendEPA violation counts by year across Macomb County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 11 violations. Past 5 years: 18 total (18 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,425
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
360,969 housing units in Macomb County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Macomb County
Remediation costs are relatively manageable for most homeowners in Macomb County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Macomb County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Macomb County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Clinton Township | 100,513 | 30 |
| 2 | Long Lake Village Subdivision | 273 | 18 |
| 3 | City of Mount Clemens, | 16,314 | 16 |
| 4 | Macomb Township | 90,000 | 12 |
| 5 | City of Richmond, | 6,200 | 12 |
26 total water systems serve Macomb County.
All ZIP Codes in Macomb County
40 ZIP codes tracked in Macomb County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 48090 | Warren | 99 | A | 0 | — |
| 2 | 48094 | Washington | 99 | A | 1 | $399K |
| 3 | 48397 | Warren | 99 | A | 0 | — |
| 4 | 48318 | Utica | 98 | A | 3 | — |
| 5 | 48021 | Eastpointe | 95 | A | 0 | $129K |
| 6 | 48065 | Romeo | 95 | A | 0 | $341K |
| 7 | 48088 | Warren | 95 | A | 0 | $205K |
| 8 | 48089 | Warren | 95 | A | 0 | $117K |
| 9 | 48091 | Warren | 95 | A | 0 | $139K |
| 10 | 48093 | Warren | 95 | A | 0 | $197K |
| 11 | 48315 | Utica | 94 | A | 3 | $358K |
| 12 | 48316 | Utica | 94 | A | 3 | $362K |
| 13 | 48046 | Mount Clemens | 93 | A | 5 (2 health) | — |
| 14 | 48062 | Richmond | 93 | A | 12 (2 health) | $249K |
| 15 | 48015 | Center Line | 92 | A | 3 | $145K |
| 16 | 48035 | Clinton Township | 92 | A | 6 | $181K |
| 17 | 48051 | New Baltimore | 91 | A | 1 (1 health) | $248K |
| 18 | 48005 | Armada | 90 | A | 5 (2 health) | $294K |
| 19 | 48092 | Warren | 90 | A | 0 | $205K |
| 20 | 48317 | Utica | 89 | A | 3 | $249K |
| 21 | 48026 | Fraser | 88 | A | 2 | $194K |
| 22 | 48042 | Macomb | 88 | A | 1 | $374K |
| 23 | 48044 | Macomb | 88 | A | 1 | $349K |
| 24 | 48311 | Sterling Heights | 88 | A | 0 | — |
| 25 | 48036 | Clinton Township | 87 | A | 6 | $201K |
| 26 | 48038 | Clinton Township | 87 | A | 6 | $246K |
| 27 | 48310 | Sterling Heights | 87 | A | 0 | $263K |
| 28 | 48313 | Sterling Heights | 87 | A | 0 | $249K |
| 29 | 48314 | Sterling Heights | 87 | A | 0 | $310K |
| 30 | 48048 | New Haven | 86 | A | 2 (1 health) | $195K |
| 31 | 48043 | Mount Clemens | 85 | A | 5 (2 health) | $169K |
| 32 | 48066 | Roseville | 84 | B | 4 (1 health) | $143K |
| 33 | 48312 | Sterling Heights | 82 | B | 0 | $254K |
| 34 | 48047 | New Baltimore | 81 | B | 1 (1 health) | $298K |
| 35 | 48045 | Harrison Township | 80 | B | 0 | $243K |
| 36 | 48064 | Casco | 66 | C | 0 | $280K |
| 37 | 48096 | Ray | 66 | C | 0 | $381K |
| 38 | 48080 | Saint Clair Shores | 60 | C | 0 | $189K |
| 39 | 48082 | Saint Clair Shores | 60 | C | 0 | $201K |
| 40 | 48023 | Fair Haven | 55 | C | 0 | $237K |
Recommended Buyer Guides for Macomb County
While many sites publish identical guide lists across every county they cover, the selection here changes by location — driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.
- Best Lead Paint Test Kits — 64% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Macomb County, Michigan
Overview
Macomb County in Michigan covers 40 ZIP codes with an average Home Safety Score of A (87/100).
20 of 40 ZIP codes have recorded EPA violations. 12 health-based violations have been documented.
← Back to Michigan water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.