Drilling into federal monitoring figures for Erlanger in KY, the pattern is middle-of-the-road — some utilities have documented MCL exceedances or treatment technique violations in recent years, while others have operated without a single flag, making the city's grade a genuine average rather than a rounded-down high.

Data: EPA SDWIS Last verified: 2026-06-03

Overview

We track water quality and home safety data for 2 ZIP codes in Erlanger, Kentucky (population ~28,707), covering 3 community water systems serving approximately 95,700 people region-wide.

No EPA violations recorded across any ZIP codes in Erlanger — an excellent indicator of water quality.

Home Safety Score

Average Home Safety Score for Erlanger: C (58/100)

The score combines three factors:

Factor	What It Measures
Water Quality	EPA violations and compliance history
Lead Levels	90th percentile lead concentration vs EPA action level
Radon Risk	EPA radon zone classification

Water Sources

Erlanger water systems draw from: Groundwater.

Lead & Copper

• Lead data: not yet available for Erlanger
• 0 ZIP codes exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 2 (Moderate Risk)

• Zone 1 (High): 0 ZIP codes
• Zone 2 (Moderate): 2 ZIP codes
• Zone 3 (Low): 0 ZIP codes

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Areas with No Violations

All ZIP Codes in Erlanger

• 41018 [C]
• 41025 [D]

Data Sources

• Water quality: EPA Safe Drinking Water Information System (SDWIS)
• Lead/copper: EPA Lead and Copper Rule sampling data
• Radon: EPA Map of Radon Zones

Updated daily.

Erlanger: Remediation Cost in Perspective

How much of a Erlanger home's value does documented remediation represent? A small fraction — the equity share here is in the low tier, and from a household financial perspective, most property owners are considering a commitment that fits comfortably within standard planning rather than a decision that rises to the level of a material budget event or significant equity consideration.

Median Home Value

$173,700

Est. Remediation

$1,250

Remediation as % of home value 0.7%

Remediation costs in Erlanger are relatively low compared to home values. The $550–$2,100 estimated range is a small fraction of median property value. Home values are 16% above the Kentucky average.

Climate-Related Water Risk for Erlanger

NFIP records stretching across multiple decades show Erlanger accumulating 5 claims and carrying 50% of its ZIP codes inside FEMA flood zones — evidence of meaningful exposure that extends beyond isolated incidents. The mechanisms linking flooding to water quality haven't changed: treatment facilities can be overwhelmed, wells can be infiltrated, and distribution systems can experience backflow. For a community at this exposure level, those mechanisms shift from hypothetical to periodically relevant.

5

Total FEMA Flood Claims

$2,306

Avg Claim Payout

50%

ZIPs in FEMA Flood Zones

Erlanger has a moderate flood history with 5 FEMA claims averaging $2,306 per payout. 50% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,250</strong> remediation cost per household.

Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.

Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.