Water Hardness in North Carolina

100 counties — Average 99.2 PPM (Moderately Hard)

86
5
9
Soft (86.0%) Moderate (5.0%) Hard (0.0%) Very Hard (9.0%)

North Carolina Water Hardness Map

Soft   Moderate   Hard   Very Hard

Hardest Water Counties

Beaufort450 PPM
Carteret2600 PPM
Currituck240 PPM
Dare830 PPM
Hyde440 PPM
New Hanover206 PPM
Onslow556.5 PPM
Pamlico1900 PPM
Tyrrell190 PPM
North Carolina

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All 100 Counties — By Water Hardness

CountyClassificationHardness
Alamance Soft 42 PPM
Alexander Soft 12 PPM
Alleghany Soft 16 PPM
Anson Soft 27.7 PPM
Ashe Soft 19 PPM
Avery Soft 8 PPM
Beaufort Very Hard 450 PPM
Bertie Soft 30 PPM
Bladen Soft 20 PPM
Brunswick Soft 50 PPM
Buncombe Soft 13 PPM
Burke Soft 12 PPM
Cabarrus Soft 52 PPM
Caldwell Soft 11 PPM
Camden Moderate 86 PPM
Carteret Very Hard 2600 PPM
Caswell Soft 30.8 PPM
Catawba Soft 13 PPM
Chatham Soft 32.1 PPM
Cherokee Soft 10 PPM
Chowan Soft 56 PPM
Clay Soft 6 PPM
Cleveland Soft 14 PPM
Columbus Soft 21 PPM
Craven Soft 38 PPM
Cumberland Soft 16 PPM
Currituck Very Hard 240 PPM
Dare Very Hard 830 PPM
Davidson Soft 43 PPM
Davie Soft 16 PPM
Duplin Soft 36 PPM
Durham Soft 31 PPM
Edgecombe Soft 25 PPM
Forsyth Soft 37.5 PPM
Franklin Soft 25.5 PPM
Gaston Soft 24 PPM
Gates Soft 28 PPM
Graham Soft 9 PPM
Granville Soft 36 PPM
Greene Soft 28.4 PPM
Guilford Soft 49 PPM
Halifax Soft 29 PPM
Harnett Soft 24 PPM
Haywood Soft 8 PPM
Henderson Soft 8 PPM
Hertford Soft 24 PPM
Hoke Soft 6 PPM
Hyde Very Hard 440 PPM
Iredell Soft 18 PPM
Jackson Soft 6 PPM
Johnston Soft 27.9 PPM
Jones Soft 53 PPM
Lee Soft 32 PPM
Lenoir Soft 25 PPM
Lincoln Soft 23 PPM
Macon Soft 7 PPM
Madison Soft 16 PPM
Martin Moderate 86 PPM
McDowell Soft 12 PPM
Mecklenburg Soft 55 PPM
Mitchell Soft 16 PPM
Montgomery Soft 20 PPM
Moore Soft 16 PPM
Nash Soft 22 PPM
New Hanover Very Hard 206 PPM
Northampton Soft 30 PPM
Onslow Very Hard 556.5 PPM
Orange Soft 28.7 PPM
Pamlico Very Hard 1900 PPM
Pasquotank Moderate 78 PPM
Pender Soft 30 PPM
Perquimans Moderate 96 PPM
Person Soft 35 PPM
Pitt Soft 33 PPM
Polk Soft 11.5 PPM
Randolph Soft 48 PPM
Richmond Soft 19 PPM
Robeson Soft 12 PPM
Rockingham Soft 23 PPM
Rowan Soft 35 PPM
Rutherford Soft 15 PPM
Sampson Soft 26 PPM
Scotland Soft 6 PPM
Stanly Soft 36 PPM
Stokes Soft 18 PPM
Surry Soft 23 PPM
Swain Soft 6 PPM
Transylvania Soft 5 PPM
Tyrrell Very Hard 190 PPM
Union Soft 45 PPM
Vance Moderate 100 PPM
Wake Soft 29 PPM
Warren Soft 29 PPM
Washington Soft 34 PPM
Watauga Soft 20 PPM
Wayne Soft 21 PPM
Wilkes Soft 12 PPM
Wilson Soft 22 PPM
Yadkin Soft 14 PPM
Yancey Soft 6 PPM

Source: USGS Water Quality Portal

Frequently Asked Questions

How hard is the water in North Carolina?

North Carolina has an average water hardness of 99.2 PPM, classified as moderately hard. Out of 100 counties, 86 have soft water, 5 moderately hard, 0 hard, and 9 very hard.

Which North Carolina counties have the hardest water?

North Carolina has 9 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 North Carolina address?

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