Location Resources
Arizona Water Hardness Chart
Published: February 1, 2026

Hard water in your home
Arizona’s water is known for its high mineral content, predominantly calcium and magnesium, making it quite hard. Although these minerals are not inherently harmful, they can cause a variety of inconveniences in your home if present in excess amounts.

Potential Problems Caused by Hard Water in Arizona
- Difficulties in Cleaning: Hard water can make cleaning tasks more challenging, from laundry to washing dishes, as it interferes with the efficiency of detergents and soaps.
- Spots on Dishware: You might notice spots or streaks on your glassware and dishes due to the mineral content in hard water.
- Plumbing Issues: Hard water can lead to buildup or scale within your pipes and on appliances, potentially causing blockages and decreasing the lifespan of your plumbing fixtures.
- Unpleasant Taste: Arizona tap water can have a taste that many describe as bitter or salty due to its hardness.
Arizona Hard Water and Water Quality Data
To better understand the specific water hardness levels in your area, refer to the Arizona Hard Water Map. This comprehensive map provides data on water hardness throughout the state of Arizona, allowing you to gauge your local water quality accurately.
For more detailed information on water quality in Arizona or your Arizona tap water, consider resources like the Arizona Department of Water Resources or the United States Geological Survey (USGS), which monitor and provide data on water quality and hardness across the state.
Looking for additional state water hardness data? Explore more water hardness reports:
- Pennsylvania water hardness
- Minnesota water hardness
- Wisconsin water hardness
- Missouri water hardness
- Iowa water hardness


A-C
- Avondale: 20.8gpg
- Chandler: 8-23gpg
D-I
- Flagstaff: 1.4-18.9gpg
- Gilbert: 11.5gpg
- Glendale: 14.6gpg
J-R
- Kingman: 12-18gpg
- Maricopa: 13.2gpg
- Mesa: 0.5-25gpg
- Oro Valley: 7-10gpg
- Paradise Valley: 11.7-19.8gpg
- Payson: 12.7gpg
- Phoenix: 10.9-16.2gpg
- Queen Creek: 12gpg
S-Z
- Scottsdale: 12.5-20gpg
- Sun City: 7-12gpg
- Surprise: 2.5-5.3gpg
- Tempe: 8-28gpg
- Tucson: 10+gpg
Treating Arizona Hard Water
There are several solutions for managing hard water issues in your Arizona home:
- Water Softeners: These devices work by replacing the hardness-causing minerals in your water with sodium or potassium ions, effectively softening the water.
- Reverse Osmosis Systems: By installing a reverse osmosis system, you can remove a broad range of contaminants from your water, providing healthier, better-tasting water.
- Water Softener Salt: Water softener salt helps your water softener system function effectively by facilitating the removal of hardness-causing minerals, thus extending the life of your appliances and plumbing fixtures.
- Culligan Water Coolers: Culligan offers a wide range of water treatment solutions to address your hard water issues. The cool, clean, refreshing water keeps everyone hydrated and energized throughout the day. Consider going bottle-free.
Treating Water Hardness in Your State




Culligan can help
If you’re experiencing hard water issues or issues with your water quality, Culligan can provide the perfect solution for you. Our team of experts can help you determine the best water treatment system for your home or business and provide expert installation and maintenance services. Contact us today to learn more!