2026 Rankings

Least Reliable Water Systems in West Virginia — 2026

Last updated: June 4, 2026

938 ZIP codes ranked by Reliability Score #1: ZIP 25410 (Bakerton, WV) — 10/100
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 938 ZIP codes with data in West Virginia, these are the lowest-ranked areas for reliability score. See also: National Least Reliable Water Systems in America | All West Virginia Rankings

Statistic Value
ZIP codes ranked 938
Lowest value 10/100
Median value 65/100
State West Virginia

100 Lowest-Ranked ZIP Codes

Rank ZIP Code City State Reliability Score Safety Score
1 25410 Bakerton WV 10/100 45/100
2 24870 Oceana WV 15/100 60/100
3 25003 Alum Creek WV 15/100 53/100
4 25007 Arnett WV 15/100 58/100
5 25414 Charles Town WV 15/100 40/100
6 25514 Fort Gay WV 15/100 58/100
7 25601 Logan WV 15/100 58/100
8 25685 Naugatuck WV 15/100 56/100
9 25813 Beaver WV 15/100 58/100
10 25841 Flat Top WV 15/100 23/100
11 25865 Lester WV 15/100 40/100
12 25902 Odd WV 15/100 53/100
13 25920 Slab Fork WV 15/100 59/100
14 25921 Sophia WV 15/100 53/100
15 25962 Rainelle WV 15/100 35/100
16 26159 Paden City WV 15/100 58/100
17 26241 Elkins WV 15/100 50/100
18 26362 Harrisville WV 15/100 64/100
19 26851 Wardensville WV 15/100 45/100
20 24701 Bluefield WV 18/100 53/100
21 24901 Lewisburg WV 18/100 49/100
22 24945 Greenville WV 18/100 50/100
23 24981 Talcott WV 18/100 44/100
24 25434 Paw Paw WV 18/100 55/100
25 26155 New Martinsville WV 18/100 48/100
26 26264 Durbin WV 18/100 63/100
27 26520 Arthurdale WV 18/100 54/100
28 25427 Hedgesville WV 21/100 51/100
29 25508 Chapmanville WV 21/100 73/100
30 25661 Williamson WV 21/100 68/100
31 26136 Big Bend WV 21/100 72/100
32 26202 Fenwick WV 21/100 71/100
33 26261 Richwood WV 21/100 36/100
34 26426 Salem WV 21/100 69/100
35 26656 Belva WV 21/100 71/100
36 26690 Swiss WV 21/100 71/100
37 25691 Rawl WV 22/100 91/100
38 24970 Ronceverte WV 23/100 45/100
39 25043 Clay WV 24/100 70/100
40 25425 Harpers Ferry WV 24/100 63/100
41 25570 Wayne WV 24/100 65/100
42 25667 Chattaroy WV 24/100 76/100
43 26033 Cameron WV 24/100 63/100
44 26047 New Cumberland WV 24/100 58/100
45 26301 Clarksburg WV 24/100 60/100
46 26302 Clarksburg WV 24/100 70/100
47 26306 Clarksburg WV 24/100 73/100
48 26431 Shinnston WV 24/100 71/100
49 26448 Wallace WV 24/100 70/100
50 26461 Clarksburg WV 24/100 75/100
51 26739 Mount Storm WV 24/100 60/100
52 26757 Romney WV 24/100 57/100
53 24801 Welch WV 25/100 55/100
54 24818 Brenton WV 25/100 60/100
55 24946 Hillsboro WV 25/100 51/100
56 25670 Delbarton WV 25/100 71/100
57 25915 Rhodell WV 25/100 67/100
58 25918 Shady Spring WV 25/100 38/100
59 26060 Valley Grove WV 25/100 40/100
60 26147 Grantsville WV 25/100 48/100
61 26205 Craigsville WV 25/100 63/100
62 26253 Beverly WV 25/100 70/100
63 26271 Hendricks WV 25/100 69/100
64 26280 Mill Creek WV 25/100 58/100
65 26292 Thomas WV 25/100 74/100
66 26337 Cairo WV 25/100 64/100
67 26451 West Milford WV 25/100 73/100
68 26572 Four States WV 25/100 65/100
69 26750 Piedmont WV 25/100 38/100
70 25270 Reedy WV 26/100 72/100
71 24851 Justice WV 27/100 91/100
72 24861 Maybeury WV 27/100 91/100
73 24892 War WV 27/100 81/100
74 24938 Frankford WV 27/100 53/100
75 25177 Saint Albans WV 27/100 81/100
76 25401 Martinsburg WV 27/100 56/100
77 25402 Martinsburg WV 27/100 66/100
78 25403 Martinsburg WV 27/100 66/100
79 25404 Martinsburg WV 27/100 61/100
80 25405 Martinsburg WV 27/100 66/100
81 25429 Martinsburg WV 27/100 61/100
82 25521 Griffithsville WV 27/100 69/100
83 25550 Point Pleasant WV 27/100 74/100
84 25674 Kermit WV 27/100 72/100
85 25676 Lenore WV 27/100 81/100
86 25690 Ragland WV 27/100 91/100
87 25696 Varney WV 27/100 77/100
88 25904 Pax WV 27/100 74/100
89 26034 Chester WV 27/100 64/100
90 26037 Follansbee WV 27/100 64/100
91 26041 Moundsville WV 27/100 54/100
92 26062 Weirton WV 27/100 54/100
93 26257 Coalton WV 27/100 82/100
94 26260 Davis WV 27/100 70/100
95 26415 Pennsboro WV 27/100 77/100
96 26541 Maidsville WV 27/100 61/100
97 26571 Farmington WV 27/100 74/100
98 26679 Mount Nebo WV 27/100 82/100
99 26704 Augusta WV 27/100 61/100
100 26722 Green Spring WV 27/100 61/100

Methodology

Water system reliability scores (0-100) combine violation frequency, violation recency, resolution rate, and system size. Systems with repeated health-based violations and unresolved issues score lowest. The reliability score focuses specifically on the water utility performance, distinct from the broader Home Safety Score.

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 does a low water reliability score mean?

A low reliability score (below 50) indicates a water system with frequent violations, poor resolution rates, or recurring compliance issues. These systems may have aging infrastructure, inadequate treatment, or management challenges.

How is reliability different from safety score?

The reliability score focuses specifically on the water utility performance (violations, resolution, compliance). The Home Safety Score is broader, also including lead risk, radon, and flood data. A ZIP code can have a reliable water system but still have high radon or flood risk.

Explore More Rankings

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

Related Rankings

Home Safety 2026 Combined water, lead, radon and environmental risk PFAS 2026 Forever chemicals detected in drinking water Lead Risk 2026 Lead pipe infrastructure and EPA exceedances
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.

Get safety alerts for West Virginia

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Check your water filter options Free tool — no phone call required.