Water Hardness in 49431
Ludington, Michigan · Mason County
Dataset updated March 9, 2026Matched to 4 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology
How this ZIP reading is built
This ZIP reading is built from 4 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 49431
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 |
|---|---|---|---|
| Ludington MI0003960 | surface water | 130 PPM Moderately Hard | |
| Pere Marquette Twp - Wells MI0005268 | groundwater | 130 PPM Moderately Hard | |
| Pere Marquette Twp - Customer MI0005267 | surface water | 130 PPM Moderately Hard | |
| Tall Oaks Condominums MI0006532 | groundwater | 130 PPM Moderately Hard |
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 Ludington, MI (49431).
Frequently Asked Questions
Is the water hard in Ludington, MI (49431)?
The average water hardness in 49431 is 130 PPM (7.6 GPG), which is classified as moderately hard.
Do I need a water softener in 49431?
With hardness of 130 PPM, a water softener is worth considering for homes in 49431.
Is hard water in 49431 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 49431?
Zip code 49431 in Ludington, Michigan is served by 4 water systems.
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