Enter your zip code and see if you live in a hard water area with our water hardness tool. Lots of people live in hard water areas without knowing. How hard is your water?
*Disclaimer: The data in this tool comes to provide a general outline of water hardness throughout the USA. Water hardness figures are based on reports from goverment and private sources. We do not guarantee the water hardness figures are 100% accurate.
HOW IS HARD WATER MEASURED?
Hard water is measured in parts per million (PPM) and how many particles of hardness are dissolved in the water per million particles gives a rating. This rating has been developed over time to the following categories:
|0 - 50 PPM||Is soft.|
|51 - 100 PPM||Is moderately soft.|
|101 - 150 PPM||Is slightly hard.|
|151 - 200 PPM||Is moderately hard.|
|201 - 275 PPM||Is hard.|
|276 - 350 PPM||Is very hard.|
|350+ PPM||Is aggressively hard.|