Water Hardness in Minot, ND

North Dakota · 1 zip codes · 5 matched water systems

250 PPM
14.6 GPG
Very Hard
0Soft60120180300+
Verified - Annual Water Quality Report

City avg (weighted): 250 PPM

Dataset updated March 9, 20265 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Minot City Of
ND5100660
Water source: groundwater
Serves: 48,743
USGS environmental estimate: 332 PPM
City report

Is Minot, ND Water Hard or Soft?

The displayed hardness for Minot, ND is 250 PPM (14.6 GPG) from Minot City Of, classified as very hard. The citywide weighted average is 250 PPM.

Displayed reading
250 PPM
Very Hard
Local coverage
1 ZIP
5 matched water systems
Source label
Annual Water Quality Report
Verified - Annual Water Quality Report

Water hardness is not a drinking-water safety score. It measures calcium and magnesium minerals, and address-level results can shift by pressure zone, supply blend, building plumbing, or private well.

Source context

How this city reading is built

This city reading is a weighted rollup across 5 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
5 verified treated-water sources
5 matched systems total for this city; treated-water reports are prioritized when available.
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 in Minot

These systems are matched to Minot, ND. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

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.
Minot City Of
ND5100660
Very Hard
250 PPMgroundwater48,743 servedVerified - Annual Water Quality Report
Source water: 332 PPM
250 PPMgroundwater7,748 servedVerified - Annual Water Quality Report
Source water: 425 PPM
250 PPMgroundwater2,742 servedVerified - Annual Water Quality Report
Source water: 425 PPM
Plaza City Of
ND3100798
Very Hard
250 PPMsurface water171 servedVerified - Annual Water Quality Report
Source water: 425 PPM
Very Hard
250 PPMsurface water30 servedVerified - Annual Water Quality Report
Source water: 425 PPM

Zip Codes in Minot, ND

What This Means For You

Use this city 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 Minot, ND.

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Frequently Asked Questions

How hard is the water in Minot, ND?

The citywide weighted average water hardness in Minot, ND is 250 PPM (14.6 GPG), classified as very hard. This is based on 5 matched water systems.

Do I need a water softener in Minot, ND?

With a citywide average hardness of 250 PPM, a water softener is recommended for homes in Minot. Confirm your tap reading before sizing equipment.

Is hard water in Minot, ND 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 Minot, ND?

Minot, North Dakota is served by 5 matched water systems across 1 zip code.

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