Where does the water in 83647 come from?

Water for zip code 83647 in Mountain Home, Idaho is provided by 13 water systems. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 83647

Q: Is the water hard in Mountain Home, ID (83647)?

The average water hardness in 83647 is 25 PPM (1.4 GPG), which is classified as soft. No water treatment is typically needed.

Q: Do I need a water softener in 83647?

At 25 PPM, your water is relatively soft. A water softener is generally not necessary, though some homeowners prefer the feel of softened water.

Mountain Home, Idaho · Elmore County

25 PPM

1.4 GPG

Soft

0Soft60120180300+

Estimated — Nearby Data

Dataset updated March 9, 2026Matched to 13 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 13 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

13 estimated sources

This ZIP reading needs local confirmation before equipment sizing or purchase decisions.

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 83647

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.

13 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.

Water System	Source	Hardness	Pop. Served	Data Source
Mountain Home, City Of ID4200032	groundwater	25 PPM Soft	14,651	Estimated — Nearby Data
Mellen Subd Water Dist ID4200089	groundwater	25 PPM Soft	250	Estimated — Nearby Data
Trinity Estates Water Users Assn ID4200053	groundwater	25 PPM Soft	250	Estimated — Nearby Data
Summerwind Water Users ID4200049	groundwater	25 PPM Soft	192	Estimated — Nearby Data
Sawtooth Estates Water Users ID4200043	groundwater	25 PPM Soft	175	Estimated — Nearby Data

Mountain Home, City Of

ID4200032

Soft

25 PPMgroundwater14,651 servedEstimated — Nearby Data

Mellen Subd Water Dist

ID4200089

Soft

25 PPMgroundwater250 servedEstimated — Nearby Data

Trinity Estates Water Users Assn

ID4200053

Soft

25 PPMgroundwater250 servedEstimated — Nearby Data

Summerwind Water Users

ID4200049

Soft

25 PPMgroundwater192 servedEstimated — Nearby Data

Sawtooth Estates Water Users

ID4200043

Soft

25 PPMgroundwater175 servedEstimated — Nearby Data

Showing the first 5 systems. Expand to review all matched systems.

Nearby Zip Codes

83337108 8362339 8363326 83648107

What This Means For You

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

Your Water Is Soft

Your water hardness is in the soft range. You likely don't need a water softener. Enjoy your naturally soft 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 Mountain Home, ID (83647).

Submit Your Data

Frequently Asked Questions

Is the water hard in Mountain Home, ID (83647)?

Our estimate for 83647 is 25 PPM (1.4 GPG), but it is based on nearby, county, or state-level data rather than a direct treated tap-water report for this exact location. Confirm with your utility or a home test.

Do I need a water softener in 83647?

Do not size a softener from this estimate alone. Confirm the actual tap-water hardness before choosing treatment equipment.

Is hard water in 83647 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 83647?

Zip code 83647 in Mountain Home, Idaho is served by 13 water systems.

Learn More About Your Water

Water Hardness Scale: PPM and GPG Chart

Use the USGS water hardness scale to compare PPM, GPG, and mg/L levels from soft to very hard water.

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How to Test Water Hardness at Home

Compare free lookups, soap tests, test strips, liquid drop kits, and lab tests for measuring water hardness.

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