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Water Hardness in 49333

Middleville, Michigan · Barry County

171 PPM
10 GPG
Moderately Hard
0Soft60120180300+
High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 5 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 5 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.

Source basis
5 USGS-backed sources
5 matched systems total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

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 49333

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.

5 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Middleville
MI0004360
Moderately Hard
165 PPMgroundwater3,309 servedHigh Confidence — USGS Monitoring
Yankee Springs Township
MI0007231
Moderately Hard
165 PPMgroundwater660 servedHigh Confidence — USGS Monitoring
Thornapple Lake Estates
MI0040047
Hard
217 PPMgroundwater538 servedHigh Confidence — USGS Monitoring
Secord Lake Mhp
MI0040168
Moderately Hard
165 PPMgroundwater43 servedHigh Confidence — USGS Monitoring
Twin Pines Mobile Home Park
MI0040410
Moderately Hard
165 PPMgroundwater30 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment 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 Middleville, MI (49333).

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Frequently Asked Questions

Is the water hard in Middleville, MI (49333)?

The average water hardness in 49333 is 171 PPM (10 GPG), which is classified as moderately hard.

Do I need a water softener in 49333?

With hardness of 171 PPM, a water softener is worth considering for homes in 49333.

Is hard water in 49333 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 49333?

Zip code 49333 in Middleville, Michigan is served by 5 water systems.

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