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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
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
North Prairie Rwd-System 1&2
ND5101125
Very Hard
250 PPMgroundwater7,748 servedVerified — Annual Water Quality Report
Source water: 425 PPM
North Prairie Rwd-System Iii
ND5101065
Very Hard
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
North Prairie Rwd System Iv
ND3101807
Very Hard
250 PPMsurface water30 servedVerified — Annual Water Quality Report
Source water: 425 PPM

Zip Codes in Minot, ND

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Very Hard Water - Treatment Strongly Recommended

Your water is very hard. Without treatment, you can expect significant scale buildup in pipes and appliances, higher energy bills from reduced water heater efficiency, and persistent issues with skin and hair dryness.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water

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.

Learn More About Your Water