Allegan County, Michigan
18 ZIP codes · Avg score 86/100 · Grade A · Updated 2026-06-04
Within Allegan County's 18 tracked ZIP codes, safety indicators remain above the national average with few health-based violations on record.
How Allegan County Compares
How Allegan County Compares
Allegan County scores 12 points above the Michigan state average (74/100) and 18 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Allegan County, Michigan
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.4 (asthma 11%, diabetes 11.6%)
Estimated additional annual cost per homeowner: $716, driven primarily by energy_code_gap
Infrastructure: 0.375% avg pipe failure probability, 19% of ZIPs at high risk
64% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Allegan County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 5 violations. Past 5 years: 11 total (11 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: $716
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
39,250 housing units in Allegan 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 Allegan County
Remediation costs are relatively manageable for most homeowners in Allegan 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 Allegan 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 Allegan County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Fennville | 2,438 | 10 |
| 2 | KALAMAZOO LAKE SEWER & WATER AUTHORITY | 5,000 | 7 |
| 3 | Allegan | 5,930 | 6 |
| 4 | Allegan County Services Center | 101 | 6 |
| 5 | Riverside Estates | 100 | 6 |
31 total water systems serve Allegan County.
All ZIP Codes in Allegan County
18 ZIP codes tracked in Allegan County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 49070 | Martin | 99 | A | 0 | $201K |
| 2 | 49416 | Glenn | 99 | A | 0 | — |
| 3 | 49419 | Hamilton | 99 | A | 1 | $302K |
| 4 | 49323 | Dorr | 98 | A | 2 | $272K |
| 5 | 49344 | Shelbyville | 98 | A | 3 | $273K |
| 6 | 49450 | Pullman | 98 | A | 2 | $128K |
| 7 | 49080 | Plainwell | 95 | A | 0 | $234K |
| 8 | 49422 | Holland | 95 | A | 1 | — |
| 9 | 49010 | Allegan | 89 | A | 6 (1 health) | $204K |
| 10 | 49408 | Fennville | 89 | A | 3 (1 health) | $210K |
| 11 | 49453 | Saugatuck | 89 | A | 3 (1 health) | $487K |
| 12 | 49078 | Otsego | 85 | A | 5 (2 health) | $190K |
| 13 | 49406 | Douglas | 73 | B | 0 | $471K |
| 14 | 49434 | Macatawa | 73 | B | 0 | — |
| 15 | 49063 | Lacota | 66 | C | 0 | — |
| 16 | 49314 | Burnips | 66 | C | 0 | — |
| 17 | 49328 | Hopkins | 66 | C | 0 | $209K |
| 18 | 49335 | Moline | 66 | C | 0 | — |
Recommended Buyer Guides for Allegan County
Independent picks. EPA-grounded. Matched here.
- Best Lead Paint Test Kits — 64% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Allegan County, Michigan
Overview
Allegan County in Michigan covers 18 ZIP codes with an average Home Safety Score of A (86/100).
9 of 18 ZIP codes have recorded EPA violations. 5 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.