Duluth, GA: High Radon Risk — 50/100 (2026)
5 ZIP codes · 4 water systems · Updated 2026-06-03
Water monitoring data from Duluth, GA tells a below-average story — health violations are present and system-level detail is worth reviewing before drawing conclusions.
How Duluth Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Duluth, GA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Duluth.
Duluth Water: The Quick Version
- Estimated remediation: $1,500 per household.
- CDC health risk index: 11.57.
Water Systems Serving Duluth
Residential water in Duluth, GA is supplied by 3 separate utilities — not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 4 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
Overview
We track water quality and home safety data for 5 ZIP codes in Duluth, Georgia (population ~116,684), covering 4 community water systems serving approximately 1,571,517 people region-wide.
No EPA violations recorded across any ZIP codes in Duluth — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Duluth: D (50/100)
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
Duluth water systems draw from: Groundwater, Surface water.
Lead & Copper
- Lead data: not yet available for Duluth
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 3 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 2 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 30095 | C | NORTH FULTON COUNTY | 434,517 |
| 30096 | D | GWINNETT CO. DEPT. OF WATER RESOURCES | 975,000 |
| 30097 | C | NORTH FULTON COUNTY | 434,517 |
| 30098 | D | JONES MOBILE HOME PARK | 800 |
| 30099 | D | GWINNETT CO. DEPT. OF WATER RESOURCES | 975,000 |
All ZIP Codes in Duluth
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.
CDC Health Data for Duluth
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Duluth: Remediation Cost in Perspective
In Duluth, property values comfortably outpace what documented remediation typically costs — the equity share is proportionally low.
Remediation costs in Duluth are relatively low compared to home values. The $1,000–$2,025 estimated range is a small fraction of median property value. Home values are 169% above the Georgia average.
Climate-Related Water Risk for Duluth
Taken together, Duluth's 94 NFIP flood insurance claims and 40% FEMA flood zone coverage place it in the moderate range of exposure. That middle position has specific implications for water quality. The contamination pathways that flooding can open — surface water overwhelming treatment facility intake, floodwaters infiltrating private wells, distribution pressure changes creating backflow — are not constant risks in a moderate-exposure community. But they do become active during significant flood events, and the claim record here indicates enough of those events to make flood timing an occasional factor in local water quality conversations.
Duluth has a moderate flood history with 94 FEMA claims averaging $17,938 per payout. 40% 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>$1,500</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.
What You Can Do in Duluth
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Duluth, GA