Washington County, Georgia
5 ZIP codes · Avg score 92/100 · Grade A · Updated 2026-06-03
Compared to state averages, Washington County scores well — its 5 ZIP codes sit above the baseline for tap water quality.
How Washington County Compares
How Washington County Compares
Washington County scores 17 points above the Georgia state average (75/100) and 24 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Washington County, Georgia
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.4 (asthma 11.1%, diabetes 18.7%)
Estimated additional annual cost per homeowner: $520, driven primarily by energy_code_gap
Infrastructure: 0.294% avg pipe failure probability
49.6% 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $520
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
6,495 housing units in Washington 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 Washington County
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
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Washington County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Sandersville | 7,776 | 13 |
| 2 | Warthen Water Association | 350 | 12 |
| 3 | Harrison | 500 | 6 |
| 4 | Riddleville | 180 | 6 |
| 5 | Davisboro | 2,058 | 2 |
9 total water systems serve Washington County.
All ZIP Codes in Washington County
5 ZIP codes tracked in Washington County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 31067 | Oconee | 98 | A | 2 | — |
| 2 | 31035 | Harrison | 96 | A | 6 | $81K |
| 3 | 31018 | Davisboro | 91 | A | 2 | — |
| 4 | 31082 | Sandersville | 90 | A | 1 | $128K |
| 5 | 31094 | Warthen | 86 | A | 12 | $178K |
Recommended Buyer Guides for Washington 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 Water Testing Kits — Baseline water quality check for your ZIP
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant peace of mind
Deep Dive Reports
Detailed analysis for Washington County, Georgia
Overview
Washington County in Georgia covers 5 ZIP codes with an average Home Safety Score of A (92/100).
5 of 5 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Georgia 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.