Water Hardness by ZIP Code in
Colorado

Browse 2 local reports across Colorado, compare average hardness levels, and spot the cities where hard water is most likely to be a real household problem.

State summary
Colorado
Avg. Hardness
185 PPM
State Risk
Severe

Local reports by city and ZIP code

Open a local page to see the reading, compare nearby ZIP codes, and get a plain-English interpretation.

Colorado Springs
Zip Code: 80901
Denver
Zip Code: 80201

Regional Water Variations

Water hardness often changes from one municipal source to the next in Colorado, so nearby ZIP codes can tell a very different story.

Why compare? A state average can hide local hotspots where scale risk is much higher.

Priority Zones To Audit First

These ZIP codes show the highest recorded hardness in Colorado and are usually the best places to start if you are researching treatment urgency.

Denver
ZIP 80201
280 PPM
Colorado Springs
ZIP 80901
90 PPM