Where does the water in 83812 come from?

Water for zip code 83812 in Clarkia, Idaho is provided by 1 water system. Contact your local utility for specific source information, or check our detailed page for your area.

Water Hardness in 83812

Clarkia, Idaho · Shoshone County

61 PPM

3.6 GPG

Slightly Hard

0Soft60120180300+

High Confidence — USGS Monitoring

Dataset updated March 9, 2026Matched to 1 water systemTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 1 matched water system. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis

1 USGS-backed source

1 matched system total for this ZIP; USGS monitoring is used where treated-water reports are unavailable.

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 83812

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.

1 water system

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
Clarkia Water And Sewer Dist ID1400021	groundwater	61 PPM Slightly Hard	53	High Confidence — USGS Monitoring

Clarkia Water And Sewer Dist

ID1400021

Slightly Hard

61 PPMgroundwater53 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

8383061 8380694 8386697 8382744 8382394 8386169 8383494 8380845 8387194

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

Water Hardness Test Kit

Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)

Salt-Free Water Conditioner

Our PickSpringWell Salt-Free Cartridge

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 Clarkia, ID (83812).

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Frequently Asked Questions

Is the water hard in Clarkia, ID (83812)?

The average water hardness in 83812 is 61 PPM (3.6 GPG), which is classified as slightly hard.

Do I need a water softener in 83812?

At 61 PPM, your water is relatively soft. A water softener is generally not necessary.

Is hard water in 83812 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 83812?

Zip code 83812 in Clarkia, Idaho is served by 1 water system.