2026 Rankings

Worst ZIP Codes for Lead in Water in Arkansas — 2026

Last updated: June 4, 2026

685 ZIP codes ranked by Lead (mg/L) #1: ZIP 71644 (Grady, AR) — 56.0 ppb
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 685 ZIP codes with data in Arkansas, these are the highest-ranked areas for lead (mg/l). See also: National Worst ZIP Codes for Lead in Water | All Arkansas Rankings

Statistic Value
ZIP codes ranked 685
Highest value 56.0 ppb
Median value 1.0 ppb
State Arkansas

Top 100 Worst ZIP Codes

Rank ZIP Code City State Lead (mg/L) Safety Score
1 71644 Grady AR 56.0 ppb 87/100
2 71659 Moscow AR 56.0 ppb 66/100
3 72133 Reydell AR 56.0 ppb 65/100
4 72431 Grubbs AR 36.0 ppb 70/100
5 72014 Beedeville AR 24.0 ppb 87/100
6 72169 Tupelo AR 24.0 ppb 66/100
7 71971 Umpire AR 17.0 ppb 66/100
8 72553 Magness AR 12.9 ppb 53/100
9 72438 Leachville AR 12.0 ppb 88/100
10 72645 Leslie AR 11.8 ppb 72/100
11 72826 Blue Mountain AR 11.0 ppb 87/100
12 72540 Guion AR 9.0 ppb 55/100
13 72561 Mount Pleasant AR 9.0 ppb 72/100
14 72628 Deer AR 8.8 ppb 80/100
15 72613 Beaver AR 7.8 ppb 53/100
16 72631 Eureka Springs AR 7.8 ppb 75/100
17 72632 Eureka Springs AR 7.8 ppb 77/100
18 72150 Sheridan AR 7.6 ppb 90/100
19 71759 Norphlet AR 7.3 ppb 88/100
20 71643 Gould AR 6.5 ppb 80/100
21 71640 Eudora AR 6.0 ppb 77/100
22 72417 Brookland AR 6.0 ppb 93/100
23 72661 Oakland AR 5.6 ppb 70/100
24 71832 De Queen AR 5.4 ppb 73/100
25 71842 Horatio AR 5.4 ppb 85/100
26 71720 Bearden AR 5.0 ppb 70/100
27 72020 Bradford AR 5.0 ppb 80/100
28 72106 Mayflower AR 5.0 ppb 85/100
29 72181 Wooster AR 5.0 ppb 75/100
30 72601 Harrison AR 5.0 ppb 77/100
31 72602 Harrison AR 5.0 ppb 82/100
32 72611 Alpena AR 5.0 ppb 72/100
33 72642 Lakeview AR 4.8 ppb 83/100
34 72651 Midway AR 4.8 ppb 53/100
35 72028 Choctaw AR 4.6 ppb 66/100
36 72031 Clinton AR 4.6 ppb 90/100
37 72088 Fairfield Bay AR 4.6 ppb 66/100
38 72141 Scotland AR 4.6 ppb 66/100
39 71935 Caddo Gap AR 4.1 ppb 55/100
40 71960 Norman AR 4.1 ppb 63/100
41 71647 Hermitage AR 4.0 ppb 80/100
42 71651 Jersey AR 4.0 ppb 66/100
43 71725 Carthage AR 4.0 ppb 88/100
44 72083 Keo AR 4.0 ppb 86/100
45 72391 West Ridge AR 4.0 ppb 66/100
46 72396 Wynne AR 4.0 ppb 84/100
47 72440 Lynn AR 4.0 ppb 88/100
48 72466 Smithville AR 4.0 ppb 66/100
49 72823 Atkins AR 4.0 ppb 99/100
50 72415 Black Rock AR 3.8 ppb 87/100
51 72458 Powhatan AR 3.8 ppb 73/100
52 72619 Bull Shoals AR 3.8 ppb 72/100
53 71658 Montrose AR 3.6 ppb 84/100
54 72520 Camp AR 3.5 ppb 53/100
55 72539 Glencoe AR 3.5 ppb 53/100
56 72576 Salem AR 3.5 ppb 72/100
57 72578 Sturkie AR 3.5 ppb 53/100
58 72583 Viola AR 3.5 ppb 72/100
59 71841 Gillham AR 3.4 ppb 88/100
60 71937 Cove AR 3.4 ppb 78/100
61 71944 Grannis AR 3.4 ppb 88/100
62 71945 Hatfield AR 3.4 ppb 86/100
63 71972 Vandervoort AR 3.4 ppb 66/100
64 71973 Wickes AR 3.4 ppb 88/100
65 72633 Everton AR 3.2 ppb 70/100
66 71631 Banks AR 3.1 ppb 66/100
67 71671 Warren AR 3.1 ppb 88/100
68 72626 Cotter AR 3.1 ppb 72/100
69 72635 Gassville AR 3.1 ppb 72/100
70 71677 Winchester AR 3.0 ppb 87/100
71 72021 Brinkley AR 3.0 ppb 89/100
72 72128 Poyen AR 3.0 ppb 73/100
73 72129 Prattsville AR 3.0 ppb 88/100
74 72329 Driver AR 3.0 ppb 73/100
75 72350 Joiner AR 3.0 ppb 63/100
76 72392 Wheatley AR 3.0 ppb 86/100
77 72395 Wilson AR 3.0 ppb 88/100
78 72515 Bexar AR 3.0 ppb 53/100
79 72617 Big Flat AR 3.0 ppb 70/100
80 72636 Gilbert AR 3.0 ppb 53/100
81 72639 Harriet AR 3.0 ppb 53/100
82 72650 Marshall AR 3.0 ppb 67/100
83 72672 Pyatt AR 3.0 ppb 66/100
84 72675 Saint Joe AR 3.0 ppb 53/100
85 72834 Dardanelle AR 3.0 ppb 87/100
86 72858 Pottsville AR 3.0 ppb 95/100
87 72865 Subiaco AR 3.0 ppb 88/100
88 71654 Mc Gehee AR 2.9 ppb 60/100
89 71670 Tillar AR 2.9 ppb 87/100
90 72045 El Paso AR 2.9 ppb 73/100
91 72047 Enola AR 2.9 ppb 73/100
92 72111 Mount Vernon AR 2.9 ppb 66/100
93 72136 Romance AR 2.9 ppb 66/100
94 72173 Vilonia AR 2.9 ppb 90/100
95 72430 Greenway AR 2.9 ppb 73/100
96 72454 Piggott AR 2.9 ppb 87/100
97 72464 Saint Francis AR 2.9 ppb 66/100
98 72721 Combs AR 2.9 ppb 66/100
99 72727 Elkins AR 2.9 ppb 90/100
100 72735 Goshen AR 2.9 ppb 66/100

Methodology

Lead rankings are based on the 90th percentile lead testing value (PB90) reported by water systems under the Lead and Copper Rule. When CCR data is unavailable, EPA SDWIS lead sampling data is used. The EPA action level for lead is 15 ppb (0.015 mg/L). There is no safe level of lead exposure.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-06-04.

Frequently Asked Questions

What is a dangerous lead level in water?

The EPA action level is 15 parts per billion (ppb). The American Academy of Pediatrics recommends no more than 1 ppb for school drinking water. There is no safe level of lead exposure for children.

How is lead measured in water?

Water systems collect samples from homes with known lead service lines or lead solder. The 90th percentile value (PB90) means 90% of samples tested below that level. If PB90 exceeds 15 ppb, the system must take corrective action.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →

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Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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