Lauderdale County, Alabama
11 ZIP codes · Avg score 58/100 · Grade C · Updated 2026-06-04
Lauderdale County shows moderate water quality across its 11 ZIP codes — some areas carry violations worth monitoring.
How Lauderdale County Compares
How Lauderdale County Compares
Lauderdale County scores 15 points below the Alabama state average (73/100) and 10 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Lauderdale County, Alabama
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.8 (asthma 9.9%, diabetes 12.9%)
Estimated additional annual cost per homeowner: $669, driven primarily by flood
Infrastructure: 0.315% avg pipe failure probability, 10% of ZIPs at high risk
55.1% 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: $669
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
44,889 housing units in Lauderdale 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 Lauderdale County
Remediation costs are relatively manageable for most homeowners in Lauderdale 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 Lauderdale 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 Lauderdale County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Greenhill Water & Fire Pro Authority | 8,214 | 9 |
| 2 | East Lauderdale County Water Authority | 10,296 | 5 |
| 3 | LEXINGTON WATER WORKS AND SEWER | 2,910 | 5 |
| 4 | FLORENCE, WATER DEPARTMENT, CITY OF | 77,766 | 5 |
| 5 | West Lauderdale Company Water & Fpa | 15,681 | 5 |
9 total water systems serve Lauderdale County.
All ZIP Codes in Lauderdale County
11 ZIP codes tracked in Lauderdale County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 35652 | Rogersville | 70 | B | 1 | $179K |
| 2 | 35633 | Florence | 68 | C | 1 | $178K |
| 3 | 35631 | Florence | 64 | C | 1 | — |
| 4 | 35632 | Florence | 64 | C | 1 | — |
| 5 | 35648 | Lexington | 64 | C | 4 | $128K |
| 6 | 35630 | Florence | 63 | C | 1 | $153K |
| 7 | 35634 | Florence | 58 | C | 1 | $263K |
| 8 | 35645 | Killen | 53 | D | 0 | $213K |
| 9 | 35677 | Waterloo | 53 | D | 0 | $190K |
| 10 | 35610 | Anderson | 40 | D | 0 | $123K |
| 11 | 35617 | Cloverdale | 40 | D | 0 | — |
Recommended Buyer Guides for Lauderdale County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Lead Paint Test Kits — 55.1% of homes built before 1978
- 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 Lauderdale County, Alabama
Overview
Lauderdale County in Alabama covers 11 ZIP codes with an average Home Safety Score of C (58/100).
7 of 11 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.