Water Hardness in 53572
Mount Horeb, Wisconsin · Dane County
Dataset updated March 9, 2026Matched to 14 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 14 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.
Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.
Water Systems Serving 53572
These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.
| Water System | Source | Hardness | Pop. Served |
|---|---|---|---|
| Madison Water Utility WI1130224 | groundwater | 300 PPM Very HardUSGS estimate: 403 PPM | |
| Sun Prairie Utilities WI1130258 | groundwater | 300 PPM Very HardUSGS estimate: 391 PPM | |
| Fitchburg Utility Dist 1 WI1130231 | groundwater | 300 PPM Very HardUSGS estimate: 403 PPM | |
| Middleton Waterworks WI1130242 | groundwater | 300 PPM Very HardUSGS estimate: 403 PPM | |
| Waunakee Waterworks WI1130265 | groundwater | 300 PPM Very HardUSGS estimate: 409 PPM |
Nearby Zip Codes
What This Means For You
Use this ZIP reading as a local planning estimate, not a final treatment specification. Hardness can vary by utility zone, seasonal blend, private well, and building plumbing. Confirm your tap reading with a utility report or home hardness test before sizing equipment.
Know your water hardness?
If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Mount Horeb, WI (53572).
Frequently Asked Questions
Is the water hard in Mount Horeb, WI (53572)?
The average water hardness in 53572 is 301 PPM (17.6 GPG), which is classified as very hard.
Do I need a water softener in 53572?
With hardness of 301 PPM, a water softener is recommended for homes in 53572.
Is hard water in 53572 safe to drink?
Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.
How many water systems serve 53572?
Zip code 53572 in Mount Horeb, Wisconsin is served by 14 water systems.
Learn More About Your Water
How to Test Water Hardness at Home
Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.
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