Water Hardness Map

How to use the interactive water hardness map

1. Click on a State to zoom-in.

2. Click on a City to open a pop-up box detailing its water hardness.

3. Click on an area without a City to open a pop-up box detailing the average State water hardness.

4. Click the arrow that is located at the top left corner of the map to zoom-out.


State Capital State Capital

City City

Interactive US Water Hardness Map

Hard water is an issue throughout the United States; as much as 85 percent of the nation's households have a hard water level ranging from slightly to extremely hard. 


Do I live in a hard water or soft water area?

We often hear customers ask "what is the water hardness in my area?" Determining water hardness in your area can be a daunting task. We have created the above USA water hardness map to help inform consumers. This tool should give you a starting point in finding solutions to your water concerns. So what is my water hardness?  Each state has a water hardness chart that can assist in finding your cities specific water hardness measurement.  For water hardness info by zip code, please contact your local water authority.


Alabama - AL

Alaska - AK

Arizona - AZ

Arkansas - AR

California - CA

Colorado - CO

Connecticut - CT

Delaware - DE

Florida - FL

Georgia - GA

Hawaii - HI

Idaho - ID

Illinois - IL

Indiana - IN

Iowa - IA

Kansas - KS

Kentucky - KY

Louisiana - LA

Maine - ME

Maryland - MD

Massachusetts - MA

Michigan - MI

Minnesota - MN

Mississippi - MS

Missouri - MO

Montana - MT

Nebraska - NE

Nevada - NV

New Hampshire - NH

New Jersey - NJ

New Mexico - NM

New York - NY

North Carolina - NC

North Dakota - ND

Ohio - OH

Oklahoma - OK

Oregon - OR

Pennsylvania - PA

Rhode Island - RI

South Carolina - SC

South Dakota - SD

Tennessee - TN

Texas - TX

Utah - UT

Vermont - VT

Virginia - VA

Washington - WA

West Virginia - WV

Wisconsin - WI

Wyoming - WY

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