Kansas utilities with moderately hard water.

61 to 120 mg/L (3.6 to 7 grains per gallon). 37 utilities serving 155,626 people as they report it, largest first.

All 37, by people served

Kansas utilities with moderately hard water, 1 to 37
Utility	Based in	Serves	Hardness, mg/L	Grains per gallon
City of Manhattan	Manhattan	54,763	97	5.6
City of Emporia	Emporia	24,009	77	4.5
City of El Dorado	El Dorado	12,810	115	6.7
Shawnee Co RWD 4c	Topeka	12,000	95	5.6
City of Augusta	Augusta	9,267	110	6.4
City of Mulvane	Mulvane	6,587	120	7
City of Eudora	Eudora	6,449	110	6.4
City of Iola	Iola	5,343	83	4.8
City of Desoto	Desoto	4,645	110	6.4
City of Clay Center	Clay Center	4,138	115	6.7
City of Ellsworth	Ellsworth	2,992	115	6.7
Wabaunsee Co RWD 2	Wamego	1,400	120	7
City of Carbondale	Carbondale	1,344	120	7
City of Pleasanton	Pleasanton	1,238	74	4.3
City of Conway Springs	Conway Springs	1,106	98	5.7
City of St George	St George	998	91	5.3
Clay Co RWD 2	Clay Center	950	120	7
Marion Co RWD 1	Durham	780	113	6.6
City of Mound City	Mound City	678	98	5.7
Washington Co RWD 2	Washington	673	92	5.4
City of Richmond	Richmond	442	120	7
City of Norwich	Norwich	433	113	6.6
City of Linn	Linn	382	73	4.3
City of McFarland	McFarland	281	63	3.7
City of Greeley	Greeley	271	100	5.8
Reno Co Water District 8	Hutchinson	260	85	5
City of Everest	Everest	259	68	4
City of Burdett	Burdett	218	115	6.7
Neighbors of Walnut Grove West, LLC	Manhattan	203	85	5
Ottawa Co RWD 1	Ada	198	108	6.3
City of Kanorado	Kanorado	155	120	7
City of Lorraine	Lorraine	140	93	5.4
City of Palmer	Palmer	125	93	5.4
City of Durham	Durham	86	110	6.4
Marais Des Cygnes Public Utility Auth	Paola	1	100	5.8
Public Wholesale WSD 26	Cottonwood Falls	1	82	4.8
Public Wholesale WSD 4	Cherryvale	1	99	5.8

Source: Kansas Department of Health and Environment, Public Water Supply Section, 552 utilities, results from Jan. 5, 2015 to Sept. 2, 2026, read Oct. 18, 2026. Each sampling point is taken at its median; a figure is typical where every point falls in one band.

Bands are the U.S. Geological Survey’s, at 17.1 mg/L to the grain. People served is what each utility reports; where one sells water to another, the same people can be counted twice. How hardness is measured here.

All 37, by people served

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