Genesee County, Michigan
39 ZIP codes · Avg score 76/100 · Grade B · Updated 2026-06-03
The 39 water systems serving Genesee County show strong compliance with federal drinking water standards.
How Genesee County Compares
How Genesee County Compares
Genesee County scores 2 points above the Michigan state average (74/100) and 8 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Genesee County, Michigan
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.9 (asthma 12.3%, diabetes 13.2%)
Estimated additional annual cost per homeowner: $1,183, driven primarily by flood
Infrastructure: 0.423% avg pipe failure probability, 38% of ZIPs at high risk
72.6% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Genesee County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 96 violations. Past 5 years: 224 total (224 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: $1,183
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
203,079 housing units in Genesee 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 Genesee County
Remediation costs are relatively manageable for most homeowners in Genesee 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 Genesee 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 Genesee County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Genesee County Water System | 73,726 | 77 |
| 2 | Glen Devon Condominiums | 260 | 52 |
| 3 | Beecher Metropolitan District | 9,400 | 35 |
| 4 | City of Flint, | 81,252 | 35 |
| 5 | Westhaven Mobile Home Park, Llc | 122 | 34 |
42 total water systems serve Genesee County.
All ZIP Codes in Genesee County
39 ZIP codes tracked in Genesee County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 48429 | Durand | 83 | B | 0 | $152K |
| 2 | 48430 | Fenton | 82 | B | 2 | $309K |
| 3 | 48458 | Mount Morris | 82 | B | 1 (1 health) | $87K |
| 4 | 48480 | Grand Blanc | 82 | B | 4 (1 health) | — |
| 5 | 48501 | Flint | 82 | B | 2 (1 health) | — |
| 6 | 48502 | Flint | 82 | B | 2 (1 health) | — |
| 7 | 48505 | Flint | 82 | B | 2 (1 health) | $28K |
| 8 | 48531 | Flint | 82 | B | 2 (1 health) | — |
| 9 | 48550 | Flint | 82 | B | 2 (1 health) | — |
| 10 | 48551 | Flint | 82 | B | 2 (1 health) | — |
| 11 | 48552 | Flint | 82 | B | 2 (1 health) | — |
| 12 | 48553 | Flint | 82 | B | 2 (1 health) | — |
| 13 | 48554 | Flint | 82 | B | 2 (1 health) | — |
| 14 | 48555 | Flint | 82 | B | 2 (1 health) | — |
| 15 | 48556 | Flint | 82 | B | 2 (1 health) | — |
| 16 | 48557 | Flint | 82 | B | 2 (1 health) | — |
| 17 | 48420 | Clio | 81 | B | 4 | $178K |
| 18 | 48436 | Gaines | 81 | B | 5 | $252K |
| 19 | 48503 | Flint | 77 | B | 2 (1 health) | $75K |
| 20 | 48504 | Flint | 77 | B | 2 (1 health) | $49K |
| 21 | 48506 | Flint | 77 | B | 2 (1 health) | $91K |
| 22 | 48532 | Flint | 77 | B | 2 (1 health) | $157K |
| 23 | 48451 | Linden | 76 | B | 18 (2 health) | $269K |
| 24 | 48473 | Swartz Creek | 76 | B | 3 (2 health) | $192K |
| 25 | 48334 | Farmington | 73 | B | 0 | $327K |
| 26 | 48433 | Flushing | 73 | B | 19 (2 health) | $197K |
| 27 | 48437 | Genesee | 72 | B | 0 | $114K |
| 28 | 48439 | Grand Blanc | 72 | B | 4 (1 health) | $251K |
| 29 | 48449 | Lennon | 72 | B | 1 | $141K |
| 30 | 48507 | Flint | 72 | B | 2 (1 health) | $101K |
| 31 | 48463 | Otisville | 71 | B | 16 (1 health) | $179K |
| 32 | 48423 | Davison | 70 | B | 0 | $209K |
| 33 | 48457 | Montrose | 70 | B | 4 | $165K |
| 34 | 48509 | Burton | 70 | B | 1 | $128K |
| 35 | 48519 | Burton | 70 | B | 1 | $158K |
| 36 | 48529 | Burton | 70 | B | 1 | $74K |
| 37 | 48438 | Goodrich | 58 | C | 19 (11 health) | $309K |
| 38 | 48411 | Atlas | 53 | D | 0 | — |
| 39 | 48440 | Hadley | 53 | D | 0 | $315K |
Recommended Buyer Guides for Genesee County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance — guides surface only when county data warrants them.
- Best Lead Paint Test Kits — 72.6% 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 Genesee County, Michigan
Overview
Genesee County in Michigan covers 39 ZIP codes with an average Home Safety Score of B (76/100).
33 of 39 ZIP codes have recorded EPA violations. 38 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.