Crawford County, Ohio
9 ZIP codes · Avg score 49/100 · Grade D · Updated 2026-06-03
Although conditions vary by area, Crawford County's 9 ZIP codes collectively show below-average water safety — health-based violations are documented throughout the county, and the overall grade reflects a pattern rather than isolated incidents.
How Crawford County Compares
How Crawford County Compares
Crawford County scores 11 points below the Ohio state average (60/100) and 19 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Crawford County, Ohio
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.5 (asthma 11.1%, diabetes 14.5%)
Estimated additional annual cost per homeowner: $1,749, driven primarily by flood
Infrastructure: 0.475% avg pipe failure probability, 88% of ZIPs at high risk
85.3% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Crawford County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 8 violations. Past 5 years: 22 total (22 health-based). Health-based violations are declining versus the prior 2-year window.
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: $1,749
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
21,330 housing units in Crawford 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 Crawford County
Remediation costs are relatively manageable for most homeowners in Crawford 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 Crawford 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 Crawford County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Crestline Village | 4,630 | 9 |
| 2 | GALION CITY | 10,453 | 8 |
| 3 | Del-Company Water Company, Inc. | 150,000 | 8 |
| 4 | Aqua Ohio - Marion | 46,317 | 8 |
| 5 | Spring Valley Mobile Home Park | 160 | 8 |
10 total water systems serve Crawford County.
All ZIP Codes in Crawford County
9 ZIP codes tracked in Crawford County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 44882 | Sycamore | 70 | B | 0 | $161K |
| 2 | 44827 | Crestline | 65 | C | 1 | $112K |
| 3 | 44833 | Galion | 56 | C | 8 (4 health) | $128K |
| 4 | 44820 | Bucyrus | 51 | D | 2 (1 health) | $134K |
| 5 | 43325 | Iberia | 40 | D | 0 | — |
| 6 | 43335 | Martel | 40 | D | 0 | — |
| 7 | 44856 | North Robinson | 40 | D | 0 | $96K |
| 8 | 44881 | Sulphur Springs | 40 | D | 0 | $96K |
| 9 | 44887 | Tiro | 40 | D | 0 | $115K |
Recommended Buyer Guides for Crawford County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Lead Paint Test Kits — 85.3% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- 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 Crawford County, Ohio
Overview
Crawford County in Ohio covers 9 ZIP codes with an average Home Safety Score of D (49/100).
3 of 9 ZIP codes have recorded EPA violations. 5 health-based violations have been documented.
← Back to Ohio 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.
What You Can Do
Crawford County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
85.3% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.