Water Hardness in Bozeman, MT

Montana · 1 zip codes · 21 matched water systems

100 PPM
5.8 GPG
Slightly Hard
0Soft60120180300+
Verified - Annual Water Quality Report

City avg (weighted): 100 PPM

Dataset updated March 9, 202621 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Bozeman City Of
MT0000161
Water source: surface water
Serves: 56,000
USGS environmental estimate: 81 PPM
City report

Is Bozeman, MT Water Hard or Soft?

The displayed hardness for Bozeman, MT is 100 PPM (5.8 GPG) from Bozeman City Of, classified as slightly hard. The citywide weighted average is 100 PPM.

Displayed reading
100 PPM
Slightly Hard
Local coverage
1 ZIP
21 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 21 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
21 verified treated-water sources
21 matched systems total for this city; treated-water reports are prioritized when available.
Water source profile
Primarily surface water
Surface-water hardness can shift with reservoirs, runoff, season, and treatment. 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 Bozeman

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

21 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.
Slightly Hard
100 PPMsurface water56,000 servedVerified - Annual Water Quality Report
Source water: 81 PPM
Slightly Hard
100 PPMgroundwater10,460 servedVerified - Annual Water Quality Report
Source water: 162 PPM
Slightly Hard
100 PPMgroundwater4,323 servedVerified - Annual Water Quality Report
Source water: 227 PPM
Slightly Hard
100 PPMgroundwater2,220 servedVerified - Annual Water Quality Report
Source water: 227 PPM
Slightly Hard
100 PPMgroundwater825 servedVerified - Annual Water Quality Report
Source water: 162 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Bozeman, MT

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 Bozeman, MT.

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Frequently Asked Questions

How hard is the water in Bozeman, MT?

The citywide weighted average water hardness in Bozeman, MT is 100 PPM (5.8 GPG), classified as slightly hard. This is based on 21 matched water systems.

Do I need a water softener in Bozeman, MT?

At 100 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Bozeman, MT 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 Bozeman, MT?

Bozeman, Montana is served by 21 matched water systems across 1 zip code.

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