COUNTY REPORT OH

Washington County, Ohio

21 ZIP codes · Avg score 70/100 · Grade B · Updated

ZipCheckup grade for Washington County: B.

This ZIP looks solid, with a few items worth a quick check.

For households in Washington County, the 21 ZIP codes on record show consistently safe tap water.

How Washington County Compares

Washington County70/100
Ohio avg60/100
National avg73/100

How Washington County Compares

B
County Grade
70/100
Avg Safety Score
21
ZIP Codes
9
Water Systems

Washington County scores 10 points above the Ohio state average (60/100) and 3 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:

B
County Grade
70
Avg Safety Score
21
ZIP Codes
Best ZIP: 45724 (83/100)
Lowest ZIP: 45750 (50/100)
$166K
Median Home Value
$1,848
Avg Remediation (111% of home value)

ZIP Code Risk Map

Water Quality Map: Washington County, Ohio

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 15.6 (asthma 10.9%, diabetes 13.8%)

Estimated additional annual cost per homeowner: $1,547, driven primarily by flood

64.7% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10.9% (national: 8.9%)
Diabetes 13.8% (national: 10.5%)
Obesity 43.7% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1973
Median Build Year
64.7%
Pre-1978 Housing
47/100
Infrastructure Stress Indicator
78%
ZIPs with High Infrastructure Stress
High
Lead Pipe Risk

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: $1,547

Flood $811/yr
Energy Code Gap $450/yr
Water / Lead $250/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

29,297 housing units in Washington County

Pre-1940 20%
1940–1959 14%
1960–1979 27%
1980–1999 24%
2000+ 14%

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 Washington County

$166K
Median Home Value
$1,848
Est. Remediation Cost
1.1%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Washington 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 Washington County residents

Asthma 10.9% (US avg: 8.9%)
Diabetes 13.8% (US avg: 11%)
Obesity 43.7% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems serving Washington County

8 community water systems serving Washington County.

Show all 8 water systems

9 total water systems serve Washington County.

Systems with the most violations in Washington County

5 water systems with recorded EPA violations.

All ZIP Codes in Washington County

21 ZIP codes tracked in Washington County.

# ZIP Code City Safety Score Grade Violations Home Value
1 45724 Cutler 83 B 0 $148K
2 45742 Little Hocking 82 B 4 (1 health) $174K
3 45784 Vincent 82 B 4 (1 health) $208K
4 45778 Stewart 81 B 2 $68K
5 45714 Belpre 65 C 4 (1 health) $159K
6 45744 Lowell 63 C 4 $170K
7 45786 Waterford 63 C 4 $195K
8 45729 Fleming 60 C 9 $222K
9 45750 Marietta 50 D 27 $178K
10 45712 Barlow
11 45713 Bartlett
12 45715 Beverly 0 $162K
13 45721 Coal Run
14 45745 Lower Salem $100K
15 45746 Macksburg $93K
16 45767 New Matamoras $123K
17 45768 Newport $198K
18 45773 Reno $239K
19 45787 Watertown
20 45788 Whipple 6 $157K
21 45789 Wingett Run

Recommended Buyer Guides for Washington County

Eight risk categories drive the selection - PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback - and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.

Overview

Washington County in Ohio covers 21 tracked ZIP records with an average Home Safety Score of B (70/100) across 9 scored records.

9 of 11 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

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Washington County?
Washington County receives a grade of B, indicating generally safe tap water across its 21 ZIP codes.
How many water systems serve Washington County?
Washington County is served by 9 public water systems that supply drinking water to residents across 21 ZIP codes.
What is the biggest environmental risk in Washington County?
The primary environmental risk factor in Washington County is flood. This contributes to an estimated additional annual cost of $1,547 per homeowner.
How old are homes in Washington County?
The median home build year in Washington County is 1973. 64.7% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Washington County compare to Ohio?
Washington County has an average Home Safety Score of 70/100 under model 4.0.0, which is above the Ohio state average of 60/100.

How to cite this page

APA ZipCheckup. (2026). Washington County, OH: HSS 70/100; 1 Health Violation. https://zipcheckup.com/county/ohio/washington/
BibTeX
@misc{zipcheckup-county-ohio-washington,
  author = {{ZipCheckup}},
  title  = {{Washington County, OH: HSS 70/100; 1 Health Violation}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/ohio/washington/}
}

Page version: August 2026.

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