Well water hardness in Kansas
Across 53 counties of Kansas, the median well sampled by the USGS has 17.2 gpg of hardness. Counties range from 7.9 gpg (Kiowa County) to 29.2 gpg (Barber County).
Millions of American households drink water from their own well. No utility tests that water and no water quality report covers it. These pages summarise the hardness the U.S. Geological Survey measured in wells county by county, so you know what to expect before you test your own well.
Counties, hardest first
| gpg | mg/L | wells | ||
|---|---|---|---|---|
| Barber County | 29.2 | 500 | 11 | very hard |
| Phillips County | 29.2 | 500 | 19 | very hard |
| Russell County | 28.9 | 495 | 15 | very hard |
| Jewell County | 26.6 | 455 | 10 | very hard |
| Osborne County | 26.3 | 450 | 10 | very hard |
| Geary County | 24.7 | 422 | 16 | very hard |
| Lyon County | 24.3 | 416 | 22 | very hard |
| Sumner County | 23.4 | 400 | 33 | very hard |
| Wabaunsee County | 23.4 | 400 | 10 | very hard |
| Johnson County | 22.2 | 380 | 13 | very hard |
| Norton County | 22.2 | 380 | 17 | very hard |
| Republic County | 20.9 | 358 | 26 | very hard |
| Douglas County | 20.7 | 355 | 10 | very hard |
| Wyandotte County | 20.7 | 354 | 16 | very hard |
| Jackson County | 20.4 | 350 | 41 | very hard |
| McPherson County | 20.4 | 350 | 21 | very hard |
| Nemaha County | 19.9 | 340 | 56 | very hard |
| Shawnee County | 19.6 | 335 | 18 | very hard |
| Marshall County | 19.3 | 330 | 11 | very hard |
| Cowley County | 19.2 | 329 | 43 | very hard |
| Jefferson County | 18.4 | 315 | 20 | very hard |
| Trego County | 18.4 | 315 | 12 | very hard |
| Ottawa County | 17.8 | 304 | 12 | very hard |
| Gray County | 17.5 | 300 | 16 | very hard |
| Kearny County | 17.5 | 299 | 16 | very hard |
| Crawford County | 17.3 | 296 | 17 | very hard |
| Sedgwick County | 17.2 | 295 | 202 | very hard |
| Atchison County | 16.4 | 280 | 19 | very hard |
| Cloud County | 16.1 | 275 | 10 | very hard |
| Doniphan County | 15.8 | 270 | 21 | very hard |
| Rice County | 15.8 | 270 | 17 | very hard |
| Stevens County | 15.5 | 265 | 17 | very hard |
| Morton County | 15.3 | 263 | 10 | very hard |
| Barton County | 15.2 | 261 | 22 | very hard |
| Reno County | 15.2 | 260 | 105 | very hard |
| Wichita County | 14.9 | 255 | 12 | very hard |
| Brown County | 14.7 | 253 | 26 | very hard |
| Stanton County | 14 | 240 | 10 | very hard |
| Leavenworth County | 13.4 | 230 | 27 | very hard |
| Ford County | 13.4 | 229 | 16 | very hard |
| Seward County | 13.1 | 225 | 16 | very hard |
| Finney County | 12.9 | 221 | 20 | very hard |
| Cherokee County | 12.9 | 220 | 52 | very hard |
| Hamilton County | 12.9 | 220 | 20 | very hard |
| Harvey County | 12.6 | 215 | 209 | very hard |
| Kingman County | 12.6 | 215 | 16 | very hard |
| Pawnee County | 12.3 | 210 | 12 | very hard |
| Meade County | 11.1 | 190 | 13 | very hard |
| Edwards County | 10.8 | 185 | 24 | very hard |
| Stafford County | 10.7 | 184 | 22 | very hard |
| Thomas County | 10.7 | 183 | 12 | very hard |
| Pratt County | 10.6 | 181 | 23 | very hard |
| Kiowa County | 7.9 | 135 | 22 | hard |
Counties with fewer than 10 sampled wells, or a median outside 5–500 mg/L, are not shown until the figure is reviewed.
Kansas: tap water hardness by city → · Well water hardness by state and county →