Little Rock, AR Water Safety: 93/100 (2026)
25 ZIP codes · 10 water systems · Updated 2026-06-03
Tap water monitoring data for Little Rock shows a consistently clean picture in AR — few violations on record, compliance well above the median.
How Little Rock Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Little Rock, AR
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Little Rock.
Little Rock Water: The Quick Version
- Average lead level: 0.001 mg/L.
- Estimated remediation: $1,367 per household.
- CDC health risk index: 13.91 — above typical levels.
Water Systems Serving Little Rock
In Little Rock, AR, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 10 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 25 ZIP codes in Little Rock, Arkansas (population ~218,724), covering 10 community water systems serving approximately 418,235 people region-wide.
No EPA violations recorded across any ZIP codes in Little Rock — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Little Rock: A (93/100)
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
Little Rock water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 25 ZIP codes
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 72201 | A | Central Arkansas Water | 368,455 |
| 72202 | A | Central Arkansas Water | 368,455 |
| 72203 | A | Central Arkansas Water | 368,455 |
| 72204 | B | Central Arkansas Water | 368,455 |
| 72205 | A | Central Arkansas Water | 368,455 |
| 72206 | A | Central Arkansas Water | 368,455 |
| 72207 | A | Central Arkansas Water | 368,455 |
| 72209 | A | Central Arkansas Water | 368,455 |
| 72210 | A | Central Arkansas Water | 368,455 |
| 72211 | A | Central Arkansas Water | 368,455 |
All ZIP Codes in Little Rock
- 72201 [A]
- 72202 [A]
- 72203 [A]
- 72204 [B]
- 72205 [A]
- 72206 [A]
- 72207 [A]
- 72209 [A]
- 72210 [A]
- 72211 [A]
- 72212 [A]
- 72214 [A]
- 72215 [A]
- 72216 [A]
- 72217 [A]
- 72219 [A]
- 72221 [A]
- 72222 [A]
- 72223 [A]
- 72225 [A]
- 72227 [A]
- 72231 [A]
- 72255 [A]
- 72260 [A]
- 72295 [A]
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 Little Rock
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
Little Rock: Remediation Cost in Perspective
Property equity in Little Rock runs well ahead of estimated remediation costs — a cost-to-value ratio that sits in the low tier, meaning documented water and safety issues here are the kind homeowners can plan to address without treating the expense as a significant budget event relative to what their homes are worth.
Remediation costs in Little Rock are relatively low compared to home values. The $911–$1,994 estimated range is a small fraction of median property value. Home values are 93% above the Arkansas average.
Protecting Children from Lead in Little Rock
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Little Rock appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Little Rock
NFIP data for Little Rock documents 997 flood insurance claims across the program's multi-decade tracking period, with 64% of ZIP codes mapped into FEMA flood zones. That level of exposure creates compounding risk during major flood events: treatment systems can be overwhelmed, wells can be contaminated, and distribution infrastructure can suffer backflow — all pathways by which flood events degrade local water quality beyond the physical damage.
Little Rock has a significant flood history with 997 FEMA flood insurance claims on record, averaging $16,247 per claim. With 64% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
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>$1,367</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 Little Rock, AR