Clark County, Ohio
15 ZIP codes · Avg score 63/100 · Grade C · Updated
ZipCheckup grade for Clark County: C.
A mixed picture - some signals here are worth your attention.
Spanning 15 ZIP codes, Clark County lands near the national median for water safety - compliance results are mixed, and the county's middle-grade standing reflects genuine variability rather than a single systemic problem.
How Clark County Compares
How Clark County Compares
Clark County scores 3 points above the Ohio state average (60/100) and 10 points below 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: Clark County, Ohio
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.7 (asthma 11.4%, diabetes 15%)
Estimated additional annual cost per homeowner: $1,536, driven primarily by flood
79.5% of homes built before 1978 (lead paint era)
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: $1,536
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
60,910 housing units in Clark 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 Clark County
Remediation costs are relatively manageable for most homeowners in Clark 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 Clark County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Clark County
8 community water systems serving Clark County.
- C
- C
- C
- C
- C
Show all 8 water systems
- C
- C
16 total water systems serve Clark County.
Systems with the most violations in Clark County
5 water systems with recorded EPA violations.
- C
- C
- C
All ZIP Codes in Clark County
15 ZIP codes tracked in Clark County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 45323 | Enon | 66 | C | 2 | $178K |
| 2 | 45503 | Springfield | 65 | C | 1 | $153K |
| 3 | 45504 | Springfield | 65 | C | 2 | $168K |
| 4 | 45505 | Springfield | 65 | C | 1 | $88K |
| 5 | 45506 | Springfield | 65 | C | 2 | $101K |
| 6 | 45341 | Medway | 62 | C | 9 | $127K |
| 7 | 45502 | Springfield | 60 | C | 8 | $226K |
| 8 | 45344 | New Carlisle | 56 | C | 15 (1 health) | $160K |
| 9 | 43010 | Catawba | — | — | $139K | |
| 10 | 45319 | Donnelsville | — | — | $138K | |
| 11 | 45349 | North Hampton | — | — | $146K | |
| 12 | 45368 | South Charleston | — | — | 6 | $156K |
| 13 | 45369 | South Vienna | — | — | $205K | |
| 14 | 45372 | Tremont City | — | — | $124K | |
| 15 | 45501 | Springfield | — | — | — |
Recommended Buyer Guides for Clark 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 — 79.5% of homes built before 1978
- 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 Clark County, Ohio
Overview
Clark County in Ohio covers 15 tracked ZIP records with an average Home Safety Score of C (63/100) across 8 scored records.
9 of 9 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation appear in the available health breakdown.
← Back to Ohio 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.