Ionia County, Michigan
13 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-06-03
Covering 13 ZIP codes, Ionia County earns a high grade for tap water — most systems report zero health-based violations, and the overall compliance rate comfortably exceeds federal benchmarks.
How Ionia County Compares
How Ionia County Compares
Ionia County scores 2 points below the Michigan state average (74/100) and 4 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Ionia County, Michigan
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.8 (asthma 11.2%, diabetes 11.1%)
Estimated additional annual cost per homeowner: $841, driven primarily by energy_code_gap
Infrastructure: 0.418% avg pipe failure probability, 42% of ZIPs at high risk
71.8% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Ionia County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 5 violations. Past 5 years: 8 total (8 health-based).
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: $841
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
25,080 housing units in Ionia 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 Ionia County
Remediation costs are relatively manageable for most homeowners in Ionia 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 Ionia 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 Ionia County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Belding | 5,769 | 11 |
| 2 | Country Village | 78 | 11 |
| 3 | Pine View Mobile Home Park | 50 | 11 |
| 4 | Lake Odessa | 2,018 | 11 |
| 5 | Portland | 3,883 | 10 |
18 total water systems serve Ionia County.
All ZIP Codes in Ionia County
13 ZIP codes tracked in Ionia County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 48815 | Clarksville | 83 | B | 0 | $238K |
| 2 | 48860 | Muir | 83 | B | 0 | $163K |
| 3 | 48873 | Pewamo | 83 | B | 0 | $199K |
| 4 | 48849 | Lake Odessa | 82 | B | 4 (1 health) | $213K |
| 5 | 48881 | Saranac | 81 | B | 1 | $219K |
| 6 | 48846 | Ionia | 78 | B | 0 | $172K |
| 7 | 48875 | Portland | 77 | B | 7 (1 health) | $213K |
| 8 | 48809 | Belding | 71 | B | 11 (3 health) | $190K |
| 9 | 48851 | Lyons | 71 | B | 3 | $137K |
| 10 | 48897 | Woodland | 63 | C | 0 | $208K |
| 11 | 48865 | Orleans | 53 | D | 0 | $123K |
| 12 | 48870 | Palo | 53 | D | 0 | $93K |
| 13 | 48887 | Smyrna | 53 | D | 0 | — |
Recommended Buyer Guides for Ionia County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Lead Paint Test Kits — 71.8% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Ionia County, Michigan
Overview
Ionia County in Michigan covers 13 ZIP codes with an average Home Safety Score of B (72/100).
5 of 13 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.