Madison County, Alabama
41 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-03
Across Madison County, EPA compliance data for 41 ZIP codes sits at a moderate level — not alarming, but not uniformly clean either.
How Madison County Compares
How Madison County Compares
Madison County scores 14 points below the Alabama state average (73/100) and 9 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Madison County, Alabama
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13 (asthma 9.5%, diabetes 12.3%)
Estimated additional annual cost per homeowner: $668, driven primarily by flood
Infrastructure: 0.231% avg pipe failure probability, 3% of ZIPs at high risk
Violation History (2022–2025)
→ Stable trendEPA violation counts by year across Madison County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 3 violations. Past 5 years: 6 total (6 health-based).
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: $668
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
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 | HUNTSVILLE UTILITIES | 262,158 | 47 |
| 2 | Madison County Water Department | 119,100 | 40 |
| 3 | Limestone County Water and Sewer Authority | 65,003 | 22 |
| 4 | Triana Water Works | 7,047 | 15 |
| 5 | MADISON, THE W & WW BOARD OF THE CITY OF | 54,114 | 14 |
14 total water systems serve Madison County.
All ZIP Codes in Madison County
41 ZIP codes tracked in Madison County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 35807 | Huntsville | 70 | B | 1 | — |
| 2 | 35824 | Huntsville | 70 | B | 1 | $378K |
| 3 | 35896 | Huntsville | 70 | B | 1 | — |
| 4 | 35804 | Huntsville | 66 | C | 1 | — |
| 5 | 35808 | Huntsville | 66 | C | 1 | — |
| 6 | 35809 | Huntsville | 66 | C | 1 | — |
| 7 | 35812 | Huntsville | 66 | C | 1 | — |
| 8 | 35813 | Huntsville | 66 | C | 1 | — |
| 9 | 35814 | Huntsville | 66 | C | 1 | — |
| 10 | 35815 | Huntsville | 66 | C | 1 | — |
| 11 | 35893 | Huntsville | 66 | C | 1 | — |
| 12 | 35894 | Huntsville | 66 | C | 1 | — |
| 13 | 35895 | Huntsville | 66 | C | 1 | — |
| 14 | 35897 | Huntsville | 66 | C | 1 | — |
| 15 | 35898 | Huntsville | 66 | C | 1 | — |
| 16 | 35899 | Huntsville | 66 | C | 1 | — |
| 17 | 35760 | New Hope | 65 | C | 0 | $165K |
| 18 | 35805 | Huntsville | 65 | C | 1 | $108K |
| 19 | 35806 | Huntsville | 65 | C | 1 | $319K |
| 20 | 35810 | Huntsville | 65 | C | 1 | $126K |
| 21 | 35811 | Huntsville | 65 | C | 1 | $250K |
| 22 | 35816 | Huntsville | 65 | C | 1 | $114K |
| 23 | 35749 | Harvest | 61 | C | 8 | $270K |
| 24 | 35757 | Madison | 60 | C | 7 | $299K |
| 25 | 35758 | Madison | 60 | C | 7 | $337K |
| 26 | 35763 | Owens Cross Roads | 60 | C | 1 | $368K |
| 27 | 35801 | Huntsville | 60 | C | 1 | $400K |
| 28 | 35803 | Huntsville | 60 | C | 1 | $259K |
| 29 | 35802 | Huntsville | 55 | C | 1 | $320K |
| 30 | 35742 | Capshaw | 53 | D | 0 | — |
| 31 | 35759 | Meridianville | 53 | D | 0 | $272K |
| 32 | 35761 | New Market | 53 | D | 0 | $215K |
| 33 | 35773 | Toney | 53 | D | 0 | $199K |
| 34 | 35741 | Brownsboro | 45 | D | 0 | $294K |
| 35 | 35750 | Hazel Green | 45 | D | 0 | $186K |
| 36 | 35754 | Laceys Spring | 45 | D | 0 | $175K |
| 37 | 35615 | Belle Mina | 40 | D | 0 | — |
| 38 | 35649 | Mooresville | 40 | D | 0 | $417K |
| 39 | 35762 | Normal | 40 | D | 0 | — |
| 40 | 35764 | Paint Rock | 40 | D | 0 | $86K |
| 41 | 35767 | Ryland | 40 | D | 0 | — |
Recommended Buyer Guides for Madison County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- 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 Madison County, Alabama
Overview
Madison County in Alabama covers 41 ZIP codes with an average Home Safety Score of C (59/100).
28 of 41 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Alabama 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.