2026 Rankings

Worst Infrastructure: Atlanta Metro — 2026

Last updated: June 4, 2026

118 ZIP codes ranked by Pipe Failure Risk #1: ZIP 30310 (Atlanta, GA) — 41%
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 118 ZIP codes with infrastructure data in the Atlanta metro area, these areas face the highest estimated risk of water pipe failure based on infrastructure age, funding gaps, and violation history.

Statistic Value
ZIP codes ranked 118
Highest risk 41%
Median risk 25%
Average risk 27%

Top 100 Highest Risk ZIP Codes

Rank ZIP Code City State Pipe Failure Risk Risk Level Safety Score
1 30310 Atlanta GA 41% High 59/100
2 30303 Atlanta GA 38% Moderate 64/100
3 30306 Atlanta GA 38% Moderate 71/100
4 30314 Atlanta GA 38% Moderate 59/100
5 30337 Atlanta GA 38% Moderate 54/100
6 30311 Atlanta GA 37% Moderate 54/100
7 30317 Atlanta GA 37% Moderate 76/100
8 30344 Atlanta GA 37% Moderate 54/100
9 30032 Decatur GA 36% Moderate 76/100
10 30307 Atlanta GA 36% Moderate 76/100
11 30360 Atlanta GA 35% Moderate 76/100
12 30315 Atlanta GA 34% Moderate 54/100
13 30030 Decatur GA 33% Moderate 76/100
14 30316 Atlanta GA 33% Moderate 76/100
15 30354 Atlanta GA 33% Moderate 59/100
16 30340 Atlanta GA 32% Moderate 71/100
17 30033 Decatur GA 31% Moderate 71/100
18 30305 Atlanta GA 31% Moderate 49/100
19 30327 Atlanta GA 31% Moderate 49/100
20 30341 Atlanta GA 31% Moderate 71/100
21 30345 Atlanta GA 31% Moderate 71/100
22 30329 Atlanta GA 30% Moderate 71/100
23 30338 Atlanta GA 30% Moderate 71/100
24 30060 Marietta GA 29% Moderate 65/100
25 30328 Atlanta GA 29% Moderate 54/100
26 30336 Atlanta GA 29% Moderate 64/100
27 30350 Atlanta GA 29% Moderate 54/100
28 30034 Decatur GA 28% Moderate 76/100
29 30035 Decatur GA 28% Moderate 81/100
30 30067 Marietta GA 28% Moderate 55/100
31 30068 Marietta GA 28% Moderate 60/100
32 30076 Roswell GA 27% Moderate 52/100
33 30318 Atlanta GA 27% Moderate 54/100
34 30062 Marietta GA 26% Moderate 60/100
35 30075 Roswell GA 26% Moderate 52/100
36 30308 Atlanta GA 26% Moderate 54/100
37 30312 Atlanta GA 26% Moderate 59/100
38 30331 Atlanta GA 26% Moderate 54/100
39 30008 Marietta GA 25% Moderate 65/100
40 30077 Roswell GA 25% Moderate 58/100
41 30301 Atlanta GA 25% Moderate 60/100
42 30302 Atlanta GA 25% Moderate 64/100
43 30304 Atlanta GA 25% Moderate 60/100
44 30320 Atlanta GA 25% Moderate 60/100
45 30321 Atlanta GA 25% Moderate 60/100
46 30322 Atlanta GA 25% Moderate 81/100
47 30325 Atlanta GA 25% Moderate 64/100
48 30330 Atlanta GA 25% Moderate 60/100
49 30332 Atlanta GA 25% Moderate 60/100
50 30333 Atlanta GA 25% Moderate 60/100
51 30334 Atlanta GA 25% Moderate 60/100
52 30342 Atlanta GA 25% Moderate 49/100
53 30343 Atlanta GA 25% Moderate 60/100
54 30348 Atlanta GA 25% Moderate 60/100
55 30349 Atlanta GA 25% Moderate 54/100
56 30353 Atlanta GA 25% Moderate 60/100
57 30355 Atlanta GA 25% Moderate 60/100
58 30356 Atlanta GA 25% Moderate 60/100
59 30357 Atlanta GA 25% Moderate 64/100
60 30358 Atlanta GA 25% Moderate 60/100
61 30359 Atlanta GA 25% Moderate 60/100
62 30361 Atlanta GA 25% Moderate 60/100
63 30362 Atlanta GA 25% Moderate 60/100
64 30364 Atlanta GA 25% Moderate 60/100
65 30366 Atlanta GA 25% Moderate 64/100
66 30368 Atlanta GA 25% Moderate 60/100
67 30369 Atlanta GA 25% Moderate 60/100
68 30370 Atlanta GA 25% Moderate 60/100
69 30371 Atlanta GA 25% Moderate 60/100
70 30374 Atlanta GA 25% Moderate 60/100
71 30375 Atlanta GA 25% Moderate 60/100
72 30376 Atlanta GA 25% Moderate 60/100
73 30377 Atlanta GA 25% Moderate 64/100
74 30378 Atlanta GA 25% Moderate 60/100
75 30380 Atlanta GA 25% Moderate 60/100
76 30384 Atlanta GA 25% Moderate 60/100
77 30385 Atlanta GA 25% Moderate 60/100
78 30386 Atlanta GA 25% Moderate 77/100
79 30387 Atlanta GA 25% Moderate 60/100
80 30388 Atlanta GA 25% Moderate 60/100
81 30392 Atlanta GA 25% Moderate 60/100
82 30394 Atlanta GA 25% Moderate 60/100
83 30396 Atlanta GA 25% Moderate 60/100
84 30398 Atlanta GA 25% Moderate 60/100
85 31106 Atlanta GA 25% Moderate 60/100
86 31107 Atlanta GA 25% Moderate 81/100
87 31119 Atlanta GA 25% Moderate 60/100
88 31120 Atlanta GA 25% Moderate 60/100
89 31126 Atlanta GA 25% Moderate 60/100
90 31131 Atlanta GA 25% Moderate 60/100
91 31136 Atlanta GA 25% Moderate 60/100
92 31139 Atlanta GA 25% Moderate 60/100
93 31141 Atlanta GA 25% Moderate 60/100
94 31145 Atlanta GA 25% Moderate 60/100
95 31146 Atlanta GA 25% Moderate 60/100
96 31150 Atlanta GA 25% Moderate 60/100
97 31156 Atlanta GA 25% Moderate 60/100
98 31192 Atlanta GA 25% Moderate 60/100
99 31193 Atlanta GA 25% Moderate 60/100
100 31195 Atlanta GA 25% Moderate 60/100

Methodology

Infrastructure risk rankings combine four data sources, each weighted equally (25%): (1) EPA Drinking Water Infrastructure Needs Survey (DWINS 2023) — state-level 20-year funding gap per capita for pipe replacement, treatment, and storage; (2) Census ACS housing vintage — percentage of homes built before 1980, when lead solder and galvanized pipes were common; (3) EPA SDWIS violation and enforcement data — system-level compliance history; (4) Lead and Copper Rule indicators — service line material inventories and 90th percentile lead testing results. The combined score is normalized to a 0-100% probability scale.

Data sources: EPA DWINS 2023, Census ACS, EPA SDWIS, Lead and Copper Rule data. Last updated: 2026-06-04.

Frequently Asked Questions

What does pipe failure probability mean?

Pipe failure probability estimates the likelihood of water main breaks, lead contamination from corroded pipes, or service disruptions based on infrastructure age, state funding gaps, violation history, and lead indicators. It is not a prediction of imminent failure, but a risk assessment based on known factors.

How is infrastructure risk calculated?

The risk score combines four equally weighted factors: state-level infrastructure funding gap per capita (from EPA DWINS 2023), housing vintage (Census ACS pre-1980 housing percentage), water system violation and enforcement history (EPA SDWIS), and lead exposure indicators (service line probability and testing results).

What can homeowners do about aging infrastructure?

Test your tap water annually, especially for lead. Check if your home has a lead service line through your water utility. Consider a whole-house water filter (NSF/ANSI 53 certified). Review your water system Consumer Confidence Report for violation history.

Does high risk mean my water is unsafe right now?

Not necessarily. Infrastructure risk indicates long-term vulnerability, not current contamination. However, areas with aging pipes and high violation counts have a statistically higher chance of water quality issues. Regular testing is the best way to verify your water safety.

Explore More Rankings

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

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Water Safety 2026 EPA violations and water quality scores Lead Risk 2026 Lead pipe infrastructure and EPA exceedances Infrastructure 2026 Aging pipes, system age and remediation costs
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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