2026 Rankings

Worst ZIP Codes for Lead in Water in Georgia — 2026

Last updated: June 4, 2026

816 ZIP codes ranked by Lead (mg/L) #1: ZIP 31083 (Scotland, GA) — 42.5 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 816 ZIP codes with data in Georgia, these are the highest-ranked areas for lead (mg/l). See also: National Worst ZIP Codes for Lead in Water | All Georgia Rankings

Statistic Value
ZIP codes ranked 816
Highest value 42.5 ppb
Median value 1.7 ppb
State Georgia

Top 100 Worst ZIP Codes

Rank ZIP Code City State Lead (mg/L) Safety Score
1 31083 Scotland GA 42.5 ppb 56/100
2 31623 Argyle GA 35.5 ppb 66/100
3 31331 Townsend GA 33.0 ppb 60/100
4 31630 Du Pont GA 26.5 ppb 65/100
5 31622 Alapaha GA 26.0 ppb 65/100
6 31650 Willacoochee GA 23.0 ppb 46/100
7 30002 Avondale Estates GA 22.3 ppb 60/100
8 30021 Clarkston GA 22.3 ppb 52/100
9 30030 Decatur GA 22.3 ppb 76/100
10 30031 Decatur GA 22.3 ppb 86/100
11 30032 Decatur GA 22.3 ppb 76/100
12 30033 Decatur GA 22.3 ppb 71/100
13 30034 Decatur GA 22.3 ppb 76/100
14 30035 Decatur GA 22.3 ppb 81/100
15 30036 Decatur GA 22.3 ppb 86/100
16 30037 Decatur GA 22.3 ppb 86/100
17 30038 Lithonia GA 22.3 ppb 52/100
18 30072 Pine Lake GA 22.3 ppb 60/100
19 30073 Decatur GA 22.3 ppb 69/100
20 30074 Redan GA 22.3 ppb 50/100
21 30079 Scottdale GA 22.3 ppb 50/100
22 30083 Stone Mountain GA 22.3 ppb 47/100
23 30087 Stone Mountain GA 22.3 ppb 47/100
24 30088 Stone Mountain GA 22.3 ppb 52/100
25 30273 Rex GA 22.3 ppb 63/100
26 30288 Conley GA 22.3 ppb 55/100
27 30297 Forest Park GA 22.3 ppb 65/100
28 30322 Atlanta GA 22.3 ppb 81/100
29 30329 Atlanta GA 22.3 ppb 71/100
30 30341 Atlanta GA 22.3 ppb 71/100
31 30345 Atlanta GA 22.3 ppb 71/100
32 30346 Atlanta GA 22.3 ppb 82/100
33 30803 Avera GA 16.0 ppb 66/100
34 30531 Cornelia GA 14.0 ppb 59/100
35 31079 Rochelle GA 13.0 ppb 68/100
36 30428 Glenwood GA 12.5 ppb 74/100
37 30564 Murrayville GA 12.4 ppb 64/100
38 30598 Toccoa Falls GA 12.0 ppb 60/100
39 30457 Soperton GA 11.1 ppb 79/100
40 31022 Dudley GA 11.0 ppb 79/100
41 31547 Kings Bay GA 11.0 ppb 79/100
42 31712 Arabi GA 10.9 ppb 80/100
43 30477 Wadley GA 10.0 ppb 78/100
44 30170 Roopville GA 9.6 ppb 66/100
45 39829 Calvary GA 9.5 ppb 84/100
46 30821 Norwood GA 9.3 ppb 85/100
47 30120 Cartersville GA 8.0 ppb 78/100
48 30121 Cartersville GA 8.0 ppb 83/100
49 30123 Cassville GA 8.0 ppb 53/100
50 30548 Hoschton GA 7.9 ppb 82/100
51 30621 Bishop GA 7.9 ppb 72/100
52 30627 Carlton GA 7.9 ppb 73/100
53 31527 Jekyll Island GA 7.8 ppb 78/100
54 31779 Pelham GA 7.6 ppb 65/100
55 30143 Jasper GA 7.4 ppb 70/100
56 31321 Pembroke GA 7.3 ppb 75/100
57 31011 Chauncey GA 7.1 ppb 92/100
58 30112 Carrollton GA 7.0 ppb 58/100
59 30116 Carrollton GA 7.0 ppb 64/100
60 30117 Carrollton GA 7.0 ppb 59/100
61 30119 Carrollton GA 7.0 ppb 64/100
62 39836 Coleman GA 6.9 ppb 90/100
63 30012 Conyers GA 6.7 ppb 64/100
64 30013 Conyers GA 6.7 ppb 64/100
65 30058 Lithonia GA 6.7 ppb 55/100
66 30094 Conyers GA 6.7 ppb 64/100
67 31778 Pavo GA 6.7 ppb 90/100
68 31836 Woodland GA 6.7 ppb 79/100
69 30823 Stapleton GA 6.5 ppb 87/100
70 31519 Broxton GA 6.5 ppb 72/100
71 30665 Siloam GA 6.3 ppb 79/100
72 31057 Marshallville GA 6.1 ppb 89/100
73 30017 Grayson GA 6.0 ppb 53/100
74 30019 Dacula GA 6.0 ppb 63/100
75 30024 Suwanee GA 6.0 ppb 45/100
76 30025 Social Circle GA 6.0 ppb 79/100
77 30026 North Metro GA 6.0 ppb 40/100
78 30029 North Metro GA 6.0 ppb 40/100
79 30039 Snellville GA 6.0 ppb 65/100
80 30042 Lawrenceville GA 6.0 ppb 66/100
81 30043 Lawrenceville GA 6.0 ppb 65/100
82 30044 Lawrenceville GA 6.0 ppb 60/100
83 30045 Lawrenceville GA 6.0 ppb 70/100
84 30046 Lawrenceville GA 6.0 ppb 65/100
85 30047 Lilburn GA 6.0 ppb 60/100
86 30049 Lawrenceville GA 6.0 ppb 66/100
87 30071 Norcross GA 6.0 ppb 66/100
88 30078 Snellville GA 6.0 ppb 73/100
89 30084 Tucker GA 6.0 ppb 60/100
90 30096 Duluth GA 6.0 ppb 40/100
91 30099 Duluth GA 6.0 ppb 40/100
92 30340 Atlanta GA 6.0 ppb 71/100
93 30360 Atlanta GA 6.0 ppb 76/100
94 30515 Buford GA 6.0 ppb 63/100
95 30518 Buford GA 6.0 ppb 62/100
96 30519 Buford GA 6.0 ppb 67/100
97 30542 Flowery Branch GA 6.0 ppb 66/100
98 31076 Reynolds GA 6.0 ppb 68/100
99 30185 Whitesburg GA 5.7 ppb 78/100
100 31018 Davisboro GA 5.7 ppb 91/100

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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