#	County	Water Quality Score	Overall Score
1	Banner County, NE	86	56
2	Blaine County, NE	86	66.5
3	Boone County, NE	86	71.2
4	Box Butte County, NE	86	43.2
5	Boyd County, NE	86	67.6
6	Brown County, NE	86	60.7
7	Burt County, NE	86	64.7
8	Chase County, NE	86	58.5
9	Cheyenne County, NE	86	41.4
10	Dakota County, NE	86	35.8
11	Douglas County, NE	86	29.6
12	Dundy County, NE	86	73.1
13	Franklin County, NE	86	68.2
14	Furnas County, NE	86	55.9
15	Gage County, NE	86	51.4
16	Garden County, NE	86	68.6
17	Garfield County, NE	86	69.3
18	Gosper County, NE	86	67.9
19	Grant County, NE	86	69.6
20	Harlan County, NE	86	69
21	Hayes County, NE	86	65.8
22	Holt County, NE	86	67.4
23	Hooker County, NE	86	66.7
24	Howard County, NE	86	65.4
25	Kearney County, NE	86	61.6
26	Keya Paha County, NE	86	65.1
27	Kimball County, NE	86	52.3
28	Lincoln County, NE	86	39.1
29	Logan County, NE	86	67.9
30	Madison County, NE	86	52.8
31	Merrick County, NE	86	64.9
32	Nemaha County, NE	86	57.7
33	Nuckolls County, NE	86	75.9
34	Pawnee County, NE	86	62.5
35	Polk County, NE	86	68.3
36	Richardson County, NE	86	60
37	Saunders County, NE	86	58.7
38	Scotts Bluff County, NE	86	37
39	Sheridan County, NE	86	57.3
40	Sioux County, NE	86	62.9
41	Thomas County, NE	86	78.9
42	Thurston County, NE	86	59.3
43	Valley County, NE	86	62.5
44	Wayne County, NE	86	60.5
45	Webster County, NE	86	65
46	Wheeler County, NE	86	74.8
47	Lancaster County, NE	71.5	32.3
48	Buffalo County, NE	67.1	38.6
49	Hall County, NE	61.4	35.5
50	Sarpy County, NE	58	44.9
51	Dodge County, NE	56.3	42.2
52	Dawson County, NE	55	47.6
53	Knox County, NE	48.2	65.3
54	Fillmore County, NE	45.2	69.4
55	Colfax County, NE	44.9	53.9
56	Stanton County, NE	43.9	67.9
57	Phelps County, NE	42.1	64.7
58	Saline County, NE	39.5	46.4
59	Morrill County, NE	38.8	58.7
60	Cass County, NE	36.6	53.6
61	Butler County, NE	36	70.4
62	Custer County, NE	35.4	58.3
63	Thayer County, NE	32.3	61.7
64	Perkins County, NE	32.2	60.5
65	Washington County, NE	31.8	55.3
66	Hitchcock County, NE	31.1	60.5
67	Seward County, NE	30.4	60.6
68	Frontier County, NE	30.1	65.1
69	Johnson County, NE	29.7	62.9
70	Deuel County, NE	26	61.2
71	York County, NE	25.2	55
72	Keith County, NE	22.5	52.4
73	Sherman County, NE	20	61.2
74	Adams County, NE	18	39.8
75	Cedar County, NE	18	67.3
76	Cherry County, NE	17.8	55.4
77	Antelope County, NE	17.1	67.5
78	Platte County, NE	17.1	44
79	Otoe County, NE	14.9	49.3
80	Nance County, NE	14.1	63.3
81	Red Willow County, NE	10.5	60.1
82	Rock County, NE	8.9	71.8
83	Jefferson County, NE	8.6	54.4
84	Greeley County, NE	6.8	64
85	Dawes County, NE	6.5	38.8
86	Pierce County, NE	5.4	65.4
87	Cuming County, NE	5.3	64.1
88	Clay County, NE	4.2	66.1
89	Hamilton County, NE	4.2	62.4
90	Dixon County, NE	1.7	63.6

Data Source

Water Quality data from WaterByCounty. See full details at WaterByCounty. Data updated February 2026.