Madison County, Georgia
5 ZIP codes · Avg score 72/100 · Grade B · Updated 2026-06-03
Madison County maintains reliable drinking water quality across all 5 of its tracked ZIP codes.
How Madison County Compares
How Madison County Compares
Madison County scores 3 points below the Georgia state average (75/100) and 4 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Madison County, Georgia
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15 (asthma 10.5%, diabetes 14.7%)
Estimated additional annual cost per homeowner: $218, driven primarily by energy_code_gap
Infrastructure: 0.27% avg pipe failure probability
39% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
↑ Worsening trendEPA violation counts by year across Madison County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 8 violations. Past 5 years: 20 total (20 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
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: $218
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
11,133 housing units in Madison 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 Madison County
Remediation costs are relatively manageable for most homeowners in Madison 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 Madison 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 Madison County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Comer | 1,531 | 21 |
| 2 | Madison County Water System | 4,663 | 21 |
| 3 | Danielsville | 1,022 | 21 |
| 4 | Colbert Water System | 1,374 | 17 |
| 5 | Harrison Militia District | 283 | 14 |
13 total water systems serve Madison County.
All ZIP Codes in Madison County
5 ZIP codes tracked in Madison County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 30647 | Ila | 83 | B | 1 | — |
| 2 | 30646 | Hull | 79 | B | 3 | $197K |
| 3 | 30629 | Comer | 77 | B | 7 | $174K |
| 4 | 30628 | Colbert | 63 | C | 0 | $242K |
| 5 | 30633 | Danielsville | 59 | C | 14 (7 health) | $190K |
Recommended Buyer Guides for Madison County
Retailer arrangements don't shape what appears here — the selection logic is independent, filtered against EPA detections and the federal hazard data on file for this county.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Madison County, Georgia
Overview
Madison County in Georgia covers 5 ZIP codes with an average Home Safety Score of B (72/100).
4 of 5 ZIP codes have recorded EPA violations. 7 health-based violations have been documented.
← 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.