Ottawa County, Michigan
19 ZIP codes · Avg score 95/100 · Grade A · Updated
ZipCheckup grade for Ottawa County: A.
No federal data flags a major home-safety concern for this ZIP.
Recent water monitoring in Ottawa County shows 19 ZIP codes with consistently safe results.
How Ottawa County Compares
How Ottawa County Compares
Ottawa County scores 10 points above the Michigan state average (85/100) and 22 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Ottawa County, Michigan
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.7 (asthma 10.9%, diabetes 9.4%)
Estimated additional annual cost per homeowner: $1,061, driven primarily by flood
52% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Ottawa County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 2 violations. Past 5 years: 5 total (5 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,061
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
127,232 housing units in Ottawa 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 Ottawa County
Remediation costs are relatively manageable for most homeowners in Ottawa 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 Ottawa County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Ottawa County
8 community water systems serving Ottawa County.
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Show all 8 water systems
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22 total water systems serve Ottawa County.
Systems with the most violations in Ottawa County
5 water systems with recorded EPA violations.
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All ZIP Codes in Ottawa County
19 ZIP codes tracked in Ottawa County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 49401 | Allendale | 100 | A | 0 | $299K |
| 2 | 49423 | Holland | 100 | A | 1 | $255K |
| 3 | 49428 | Jenison | 100 | A | 1 | $276K |
| 4 | 49435 | Marne | 100 | A | 0 | $300K |
| 5 | 49424 | Holland | 99 | A | 3 (1 health) | $270K |
| 6 | 49426 | Hudsonville | 99 | A | 2 | $338K |
| 7 | 49464 | Zeeland | 99 | A | 2 (1 health) | $317K |
| 8 | 49460 | West Olive | 96 | A | 8 (2 health) | $359K |
| 9 | 49404 | Coopersville | 95 | A | 13 | $271K |
| 10 | 49534 | Grand Rapids | 95 | A | 9 (1 health) | $270K |
| 11 | 49417 | Grand Haven | 80 | B | 6 (1 health) | $288K |
| 12 | 49456 | Spring Lake | 80 | B | 9 | $295K |
| 13 | 49403 | Conklin | — | — | 4 | $259K |
| 14 | 49409 | Ferrysburg | — | — | 1 | $166K |
| 15 | 49427 | Jamestown | — | — | — | |
| 16 | 49429 | Jenison | — | — | — | |
| 17 | 49430 | Lamont | — | — | — | |
| 18 | 49434 | Macatawa | — | — | — | |
| 19 | 49448 | Nunica | — | — | 12 | $266K |
Recommended Buyer Guides for Ottawa 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 — 52% 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 Ottawa County, Michigan
Overview
Ottawa County in Michigan covers 19 tracked ZIP records with an average Home Safety Score of A (95/100) across 12 scored records.
13 of 15 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 3 health-based violations appear in the available health breakdown.
← Back to Michigan Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.