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 Protection Status
Created with Raphaël 2.1.0
Created with Raphaël 2.1.0