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Water Hardness in 59716

Big Sky, Montana · Gallatin County

99 PPM
5.8 GPG
Slightly Hard
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 14 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 14 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
2 verified treated-water sources
14 matched systems total for this ZIP; 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 Serving 59716

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.

14 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.
Bozeman City Of
MT0000161
Slightly Hard
100 PPMsurface water56,000 servedVerified — Annual Water Quality Report
Source water: 81 PPM
Belgrade City Of
MT0000136
Slightly Hard
100 PPMgroundwater10,460 servedVerified — Annual Water Quality Report
Source water: 162 PPM
Big Sky County Water And Sewer Dist 363
MT0002385
Slightly Hard
91 PPMgroundwater4,132 servedEstimated — Nearby Data
Andesite Ridge Water System
MT0004468
Slightly Hard
91 PPMgroundwater450 servedEstimated — Nearby Data
Lower Pioneer Mountain Water System
MT0004462
Slightly Hard
91 PPMgroundwater350 servedEstimated — Nearby Data
Showing the first 5 systems. Expand to review all matched systems.

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.

Slightly Hard Water

Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | 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 Big Sky, MT (59716).

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Frequently Asked Questions

Is the water hard in Big Sky, MT (59716)?

The average water hardness in 59716 is 99 PPM (5.8 GPG), which is classified as slightly hard.

Do I need a water softener in 59716?

At 99 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 59716 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 59716?

Zip code 59716 in Big Sky, Montana is served by 14 water systems.

Learn More About Your Water