Johnson, AR Water Safety: 73/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
EPA compliance records for Johnson tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within AR.
How Johnson Compares
Data: EPA SDWIS Last verified: 2026-06-03
Johnson Water: The Quick Version
- Estimated remediation: $2,500 per household.
- CDC health risk index: 12.2 — above typical levels.
Water Systems Serving Johnson
One utility dominates residential water service in Johnson, AR — out of 1 system in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Johnson, Arkansas, covering 1 community water system serving approximately 116,398 people.
No EPA violations recorded across any ZIP codes in Johnson — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Johnson: B (73/100)
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
Johnson water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Johnson
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 72741 | B | FAYETTEVILLE WATERWORKS | 116,398 |
All ZIP Codes in Johnson
- 72741 [B]
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 Johnson
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
Climate-Related Water Risk for Johnson
Johnson's flood exposure sits in the moderate range: 2 NFIP claims on record and 100% of ZIP codes within FEMA-designated flood zones. Residents with private wells or older infrastructure have reasonable grounds to factor flood timing into their water quality awareness.
Johnson has a moderate flood history with 2 FEMA claims averaging $175,641 per payout. 100% 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>$2,500</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.
Deep Dive Reports
Detailed analysis for Johnson, AR