Least Reliable Water Systems in Kentucky — 2026

Out of 994 ZIP codes with data in Kentucky, these are the lowest-ranked areas for reliability score. See also: National Least Reliable Water Systems in America | All Kentucky Rankings

Statistic	Value
ZIP codes ranked	994
Lowest value	15/100
Median value	80/100
State	Kentucky

100 Lowest-Ranked ZIP Codes

Rank	ZIP Code	City	State	Reliability Score	Safety Score
1	41501	Pikeville	KY	15/100	43/100
2	41502	Pikeville	KY	15/100	53/100
3	42081	Smithland	KY	15/100	53/100
4	42437	Morganfield	KY	15/100	58/100
5	42450	Providence	KY	15/100	58/100
6	42459	Sturgis	KY	15/100	51/100
7	40855	Lynch	KY	27/100	82/100
8	40445	Livingston	KY	30/100	61/100
9	41311	Beattyville	KY	30/100	56/100
10	42256	Lewisburg	KY	30/100	62/100
11	40962	Manchester	KY	34/100	70/100
12	40383	Versailles	KY	39/100	47/100
13	40384	Versailles	KY	39/100	56/100
14	41537	Jenkins	KY	40/100	67/100
15	41840	Neon	KY	40/100	54/100
16	41472	West Liberty	KY	42/100	74/100
17	41129	Catlettsburg	KY	43/100	63/100
18	42461	Uniontown	KY	43/100	65/100
19	41143	Grayson	KY	46/100	64/100
20	41169	Russell	KY	47/100	74/100
21	42055	Kuttawa	KY	48/100	74/100
22	42337	Drakesboro	KY	48/100	76/100
23	41017	Ft Mitchell	KY	50/100	57/100
24	42754	Leitchfield	KY	50/100	81/100
25	42755	Leitchfield	KY	50/100	81/100
26	42050	Hickman	KY	52/100	94/100
27	41339	Jackson	KY	53/100	63/100
28	41649	Martin	KY	53/100	57/100
29	40008	Bloomfield	KY	54/100	68/100
30	41005	Burlington	KY	55/100	79/100
31	42210	Brownsville	KY	55/100	68/100
32	42327	Calhoun	KY	55/100	57/100
33	42345	Greenville	KY	55/100	67/100
34	42351	Lewisport	KY	55/100	71/100
35	41101	Ashland	KY	57/100	46/100
36	41102	Ashland	KY	57/100	41/100
37	42343	Fordsville	KY	57/100	71/100
38	42455	Sebree	KY	57/100	79/100
39	42413	Hanson	KY	58/100	78/100
40	40906	Barbourville	KY	59/100	68/100
41	40019	Eminence	KY	60/100	81/100
42	40380	Stanton	KY	60/100	67/100
43	41011	Covington	KY	60/100	55/100
44	41012	Covington	KY	60/100	53/100
45	41014	Covington	KY	60/100	63/100
46	41015	Latonia	KY	60/100	55/100
47	41016	Covington	KY	60/100	50/100
48	41019	Covington	KY	60/100	53/100
49	41025	Erlanger	KY	60/100	53/100
50	41059	Melbourne	KY	60/100	50/100
51	41071	Newport	KY	60/100	55/100
52	41072	Newport	KY	60/100	53/100
53	41073	Bellevue	KY	60/100	50/100
54	41074	Dayton	KY	60/100	50/100
55	41075	Fort Thomas	KY	60/100	63/100
56	41076	Newport	KY	60/100	55/100
57	41085	Silver Grove	KY	60/100	50/100
58	41099	Newport	KY	60/100	53/100
59	42087	Wickliffe	KY	60/100	65/100
60	42539	Liberty	KY	60/100	62/100
61	42713	Bonnieville	KY	60/100	31/100
62	40807	Benham	KY	62/100	79/100
63	40322	Frenchburg	KY	64/100	76/100
64	40828	Evarts	KY	64/100	76/100
65	41031	Cynthiana	KY	64/100	58/100
66	42441	Nebo	KY	64/100	70/100
67	40012	Chaplin	KY	65/100	53/100
68	40048	Nazareth	KY	65/100	40/100
69	40107	Boston	KY	65/100	40/100
70	40119	Falls Of Rough	KY	65/100	53/100
71	40316	Denniston	KY	65/100	53/100
72	40376	Slade	KY	65/100	63/100
73	40460	Orlando	KY	65/100	53/100
74	40862	Partridge	KY	65/100	63/100
75	41003	Berry	KY	65/100	53/100
76	41054	Mason	KY	65/100	53/100
77	41105	Ashland	KY	65/100	56/100
78	41114	Ashland	KY	65/100	56/100
79	41128	Carter	KY	65/100	53/100
80	41135	Emerson	KY	65/100	63/100
81	41160	Mazie	KY	65/100	53/100
82	41168	Rush	KY	65/100	50/100
83	41180	Webbville	KY	65/100	63/100
84	41201	Adams	KY	65/100	63/100
85	41264	Ulysses	KY	65/100	53/100
86	41352	Mize	KY	65/100	63/100
87	41368	Saint Helens	KY	65/100	53/100
88	41397	Zoe	KY	65/100	53/100
89	41408	Cannel City	KY	65/100	63/100
90	41413	Crockett	KY	65/100	53/100
91	41421	Elkfork	KY	65/100	53/100
92	41425	Ezel	KY	65/100	63/100
93	41451	Malone	KY	65/100	53/100
94	41477	Wrigley	KY	65/100	53/100
95	41503	South Williamson	KY	65/100	50/100
96	41512	Ashcamp	KY	65/100	63/100
97	41514	Belfry	KY	65/100	45/100
98	41517	Burdine	KY	65/100	63/100
99	41519	Canada	KY	65/100	63/100
100	41520	Dorton	KY	65/100	63/100

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.