St. Clair County, Alabama
15 ZIP codes · Avg score 74/100 · Grade B · Updated 2026-06-03
Across St. Clair County's 15 ZIP codes, EPA compliance data shows above-average performance — violation rates are minimal, none of the county's systems have triggered health-based MCL exceedances in recent cycles, and the county's scores have stayed above the national baseline across every recent reporting period.
How St. Clair County Compares
How St. Clair County Compares
St. Clair County scores 1 points above the Alabama state average (73/100) and 6 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: St. Clair County, Alabama
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.4 (asthma 10%, diabetes 13.2%)
Estimated additional annual cost per homeowner: $486, driven primarily by flood
Infrastructure: 0.25% avg pipe failure probability
37% 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: $486
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
41,685 housing units in St. Clair 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 St. Clair County
Remediation costs are relatively manageable for most homeowners in St. Clair 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 St. Clair 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 St. Clair County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Odenville, the Util Board of the Town of | 26,022 | 11 |
| 2 | Cook Springs Water Authority | 4,569 | 10 |
| 3 | Ashville Water and Sewer | 4,107 | 10 |
| 4 | Northwest St Clair Water System | 2,886 | 9 |
| 5 | CENTRAL ALABAMA WATER SYSTEM | 585,000 | 8 |
22 total water systems serve St. Clair County.
All ZIP Codes in St. Clair County
15 ZIP codes tracked in St. Clair County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 35112 | Margaret | 83 | B | 0 | — |
| 2 | 35131 | Ragland | 83 | B | 0 | $96K |
| 3 | 35182 | Wattsville | 83 | B | 0 | — |
| 4 | 35953 | Ashville | 82 | B | 3 | $198K |
| 5 | 35135 | Riverside | 81 | B | 1 | $244K |
| 6 | 35146 | Springville | 81 | B | 1 | $255K |
| 7 | 35054 | Cropwell | 78 | B | 0 | $274K |
| 8 | 35987 | Steele | 78 | B | 6 (1 health) | $145K |
| 9 | 35120 | Odenville | 75 | B | 4 | $211K |
| 10 | 35125 | Pell City | 75 | B | 3 | $180K |
| 11 | 35128 | Pell City | 75 | B | 3 | $240K |
| 12 | 35094 | Leeds | 73 | B | 0 | $222K |
| 13 | 35004 | Moody | 55 | C | 0 | $218K |
| 14 | 35052 | Cook Springs | 53 | D | 0 | — |
| 15 | 35972 | Gallant | 53 | D | 0 | $90K |
Recommended Buyer Guides for St. Clair County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations — federal data drives the order, not retailer arrangements.
- 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 St. Clair County, Alabama
Overview
St. Clair County in Alabama covers 15 ZIP codes with an average Home Safety Score of B (74/100).
7 of 15 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← 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.