LocalDataPoint

USA Water Quality

Browse water hardness, PFAS levels, and quality ratings across 51 states and 3,887 cities. Sourced from the USGS Water Quality Portal & EPA.

3,887

Cities

51

States

151 mg/L

Avg Hardness

๐ŸŸ  Hard

Avg Category

๐Ÿ”ด Hardest: Nevada (324 mg/L)
๐ŸŸข Softest: Alaska (39 mg/L)

Alabama

๐ŸŸก Moderately Hard
57 cities97 mg/L ยท 5.7 gpg
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Alaska

๐ŸŸข Soft
7 cities39 mg/L ยท 2.3 gpg
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Arizona

๐Ÿ”ด Very Hard
60 cities311 mg/L ยท 18.2 gpg
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Arkansas

๐ŸŸ  Hard
31 cities150 mg/L ยท 8.8 gpg
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California

๐ŸŸก Moderately Hard
490 cities107 mg/L ยท 6.3 gpg
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Colorado

๐ŸŸก Moderately Hard
55 cities114 mg/L ยท 6.7 gpg
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Connecticut

๐ŸŸข Soft
71 cities55 mg/L ยท 3.2 gpg
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Delaware

๐ŸŸก Moderately Hard
8 cities118 mg/L ยท 6.9 gpg
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District of Columbia

๐ŸŸก Moderately Hard
22 cities113 mg/L ยท 6.6 gpg
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Florida

๐Ÿ”ด Very Hard
284 cities188 mg/L ยท 11.0 gpg
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Georgia

๐ŸŸก Moderately Hard
92 cities117 mg/L ยท 6.8 gpg
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Hawaii

๐ŸŸข Soft
44 cities46 mg/L ยท 2.7 gpg
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Idaho

๐ŸŸก Moderately Hard
20 cities76 mg/L ยท 4.4 gpg
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Illinois

๐Ÿ”ด Very Hard
239 cities198 mg/L ยท 11.6 gpg
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Indiana

๐Ÿ”ด Very Hard
69 cities189 mg/L ยท 11.0 gpg
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Iowa

๐Ÿ”ด Very Hard
31 cities253 mg/L ยท 14.8 gpg
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Kansas

๐Ÿ”ด Very Hard
29 cities302 mg/L ยท 17.6 gpg
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Kentucky

๐ŸŸ  Hard
42 cities163 mg/L ยท 9.5 gpg
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Louisiana

๐ŸŸก Moderately Hard
43 cities103 mg/L ยท 6.0 gpg
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Maine

๐ŸŸข Soft
14 cities40 mg/L ยท 2.3 gpg
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Maryland

๐ŸŸ  Hard
111 cities141 mg/L ยท 8.2 gpg
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Massachusetts

๐ŸŸก Moderately Hard
153 cities75 mg/L ยท 4.4 gpg
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Michigan

๐ŸŸ  Hard
86 cities162 mg/L ยท 9.5 gpg
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Minnesota

๐Ÿ”ด Very Hard
87 cities183 mg/L ยท 10.7 gpg
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Mississippi

๐ŸŸก Moderately Hard
36 cities100 mg/L ยท 5.8 gpg
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Missouri

๐Ÿ”ด Very Hard
67 cities186 mg/L ยท 10.9 gpg
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Montana

๐ŸŸก Moderately Hard
7 cities109 mg/L ยท 6.4 gpg
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Nebraska

๐Ÿ”ด Very Hard
15 cities315 mg/L ยท 18.4 gpg
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Nevada

๐Ÿ”ด Very Hard
21 cities324 mg/L ยท 18.9 gpg
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New Hampshire

๐ŸŸข Soft
16 cities45 mg/L ยท 2.6 gpg
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New Jersey

๐ŸŸก Moderately Hard
162 cities110 mg/L ยท 6.4 gpg
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New Mexico

๐Ÿ”ด Very Hard
17 cities231 mg/L ยท 13.5 gpg
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New York

๐ŸŸ  Hard
256 cities122 mg/L ยท 7.1 gpg
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North Carolina

๐ŸŸ  Hard
78 cities120 mg/L ยท 7.0 gpg
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North Dakota

๐Ÿ”ด Very Hard
9 cities275 mg/L ยท 16.1 gpg
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Ohio

๐Ÿ”ด Very Hard
157 cities183 mg/L ยท 10.7 gpg
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Oklahoma

๐Ÿ”ด Very Hard
37 cities239 mg/L ยท 14.0 gpg
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Oregon

๐ŸŸข Soft
52 cities59 mg/L ยท 3.4 gpg
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Pennsylvania

๐ŸŸ  Hard
121 cities152 mg/L ยท 8.9 gpg
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Rhode Island

๐ŸŸข Soft
24 cities56 mg/L ยท 3.3 gpg
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South Carolina

๐ŸŸก Moderately Hard
46 cities104 mg/L ยท 6.1 gpg
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South Dakota

๐Ÿ”ด Very Hard
9 cities267 mg/L ยท 15.6 gpg
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Tennessee

๐ŸŸ  Hard
50 cities161 mg/L ยท 9.4 gpg
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Texas

๐Ÿ”ด Very Hard
223 cities268 mg/L ยท 15.7 gpg
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Utah

๐Ÿ”ด Very Hard
50 cities253 mg/L ยท 14.8 gpg
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Vermont

๐ŸŸข Soft
4 cities48 mg/L ยท 2.8 gpg
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Virginia

๐ŸŸ  Hard
91 cities137 mg/L ยท 8.0 gpg
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Washington

๐ŸŸข Soft
105 cities48 mg/L ยท 2.8 gpg
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West Virginia

๐ŸŸ  Hard
13 cities150 mg/L ยท 8.8 gpg
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Wisconsin

๐Ÿ”ด Very Hard
69 cities186 mg/L ยท 10.9 gpg
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Wyoming

๐ŸŸก Moderately Hard
7 cities111 mg/L ยท 6.5 gpg
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