Water Hardness in Kentucky

120 counties — Average 154.8 PPM (Hard)

9
38
33
40
Soft (7.5%) Moderate (31.7%) Hard (27.5%) Very Hard (33.3%)

Kentucky Water Hardness Map

Soft   Moderate   Hard   Very Hard

Hardest Water Counties

Anderson226 PPM
Barren184 PPM
Bourbon207.5 PPM
Boyle200 PPM
Breathitt253 PPM
Breckinridge240 PPM
Bullitt197 PPM
Caldwell190 PPM
Campbell275 PPM
Carroll330 PPM
Christian200 PPM
Clark230 PPM
+28 more
Kentucky

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All 120 Counties — By Water Hardness

CountyClassificationHardness
Adair Moderate 80.8 PPM
Allen Moderate 120 PPM
Anderson Very Hard 226 PPM
Ballard Moderate 105.5 PPM
Barren Very Hard 184 PPM
Bath Hard 149 PPM
Bell Soft 49 PPM
Boone Hard 133.3 PPM
Bourbon Very Hard 207.5 PPM
Boyd Moderate 120 PPM
Boyle Very Hard 200 PPM
Bracken Hard 132 PPM
Breathitt Very Hard 253 PPM
Breckinridge Very Hard 240 PPM
Bullitt Very Hard 197 PPM
Butler Hard 136 PPM
Caldwell Very Hard 190 PPM
Calloway Soft 31 PPM
Campbell Very Hard 275 PPM
Carlisle Soft 33.8 PPM
Carroll Very Hard 330 PPM
Carter Moderate 97 PPM
Casey Moderate 95.5 PPM
Christian Very Hard 200 PPM
Clark Very Hard 230 PPM
Clay Moderate 98 PPM
Clinton Hard 140 PPM
Crittenden Very Hard 202.5 PPM
Cumberland Hard 132 PPM
Daviess Hard 170 PPM
Edmonson Moderate 90.8 PPM
Elliott Moderate 100 PPM
Estill Hard 150 PPM
Fayette Very Hard 240 PPM
Fleming Moderate 91.7 PPM
Floyd Hard 179.5 PPM
Franklin Moderate 110 PPM
Fulton Hard 155 PPM
Gallatin Hard 140 PPM
Garrard Hard 151 PPM
Grant Very Hard 215.5 PPM
Graves Soft 23.5 PPM
Grayson Hard 155 PPM
Green Hard 145 PPM
Greenup Moderate 109.5 PPM
Hancock Hard 128 PPM
Hardin Very Hard 200 PPM
Harlan Soft 59 PPM
Harrison Moderate 109 PPM
Hart Hard 130 PPM
Henderson Hard 140 PPM
Henry Hard 130 PPM
Hickman Soft 34 PPM
Hopkins Very Hard 279 PPM
Jackson Moderate 79.8 PPM
Jefferson Very Hard 400 PPM
Jessamine Very Hard 196 PPM
Johnson Moderate 100 PPM
Kenton Very Hard 370 PPM
Knott Moderate 110 PPM
Knox Moderate 103 PPM
Larue Hard 160 PPM
Laurel Moderate 71.8 PPM
Lawrence Hard 128 PPM
Lee Moderate 100 PPM
Leslie Hard 145 PPM
Letcher Moderate 94 PPM
Lewis Soft 46.4 PPM
Lincoln Hard 130 PPM
Livingston Moderate 98 PPM
Logan Very Hard 184 PPM
Lyon Moderate 95.7 PPM
Madison Hard 164 PPM
Magoffin Soft 55 PPM
Marion Hard 157.5 PPM
Marshall Moderate 62 PPM
Martin Hard 160 PPM
Mason Very Hard 220 PPM
McCracken Moderate 65.2 PPM
McCreary Moderate 64 PPM
McLean Very Hard 437 PPM
Meade Very Hard 280 PPM
Menifee Moderate 62 PPM
Mercer Very Hard 220 PPM
Metcalfe Very Hard 315 PPM
Monroe Moderate 81.3 PPM
Montgomery Very Hard 260 PPM
Morgan Moderate 87.6 PPM
Muhlenberg Hard 140 PPM
Nelson Very Hard 195 PPM
Nicholas Very Hard 305 PPM
Ohio Moderate 103 PPM
Oldham Very Hard 238 PPM
Owen Hard 163 PPM
Owsley Moderate 81.9 PPM
Pendleton Moderate 110 PPM
Perry Hard 150 PPM
Pike Hard 173 PPM
Powell Moderate 90 PPM
Pulaski Moderate 92 PPM
Robertson Very Hard 211 PPM
Rockcastle Moderate 95.8 PPM
Rowan Moderate 75.2 PPM
Russell Moderate 76.7 PPM
Scott Very Hard 230 PPM
Shelby Very Hard 240 PPM
Simpson Very Hard 210 PPM
Spencer Very Hard 203 PPM
Taylor Very Hard 380 PPM
Todd Very Hard 190 PPM
Trigg Hard 149 PPM
Trimble Very Hard 280 PPM
Union Hard 147 PPM
Warren Hard 159 PPM
Washington Very Hard 196.5 PPM
Wayne Moderate 98 PPM
Webster Hard 140 PPM
Whitley Moderate 73.3 PPM
Wolfe Soft 44 PPM
Woodford Very Hard 210 PPM

Source: USGS Water Quality Portal

Frequently Asked Questions

How hard is the water in Kentucky?

Kentucky has an average water hardness of 154.8 PPM, classified as hard. Out of 120 counties, 9 have soft water, 38 moderately hard, 33 hard, and 40 very hard.

Which Kentucky counties have the hardest water?

Kentucky has 40 counties with very hard water (above 180 mg/L). See the county table above for a complete breakdown by hardness level.

How do I check water hardness for my Kentucky address?

Enter your ZIP code in the search box above to see your area's estimated water hardness, classification, and water utility information.