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Water Hardness in Pocatello, ID

Idaho · 2 zip codes · 9 matched water systems

200 PPM
11.7 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 200 PPM

Dataset updated March 9, 20269 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

System used for this reading
Pocatello City Of
ID6030043
Water source: groundwater
Serves: 58,231
USGS environmental estimate: 257 PPM
Source context

How this city reading is built

This city reading is a weighted rollup across 9 matched water systems and 2 ZIP codes. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
9 verified treated-water sources
9 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 Pocatello

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

9 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.
Pocatello City Of
ID6030043
Hard
200 PPMgroundwater58,231 servedVerified — Annual Water Quality Report
Source water: 257 PPM
Chubbuck City Of
ID6030008
Hard
200 PPMgroundwater15,842 servedVerified — Annual Water Quality Report
Source water: 257 PPM
Caribou Acres
ID6030005
Hard
200 PPMgroundwater150 servedVerified — Annual Water Quality Report
Source water: 295 PPM
Pleasant Acres Mobile Home Park
ID4200001
Hard
200 PPMgroundwater85 servedVerified — Annual Water Quality Report
Source water: 257 PPM
Wildhorse Ridge Subd
ID6030081
Hard
200 PPMgroundwater85 servedVerified — Annual Water Quality Report
Source water: 295 PPM
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Pocatello, ID

What This Means For You

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

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Frequently Asked Questions

How hard is the water in Pocatello, ID?

The citywide weighted average water hardness in Pocatello, ID is 200 PPM (11.7 GPG), classified as hard. This is based on 9 matched water systems.

Do I need a water softener in Pocatello, ID?

With a citywide average hardness of 200 PPM, a water softener is recommended for homes in Pocatello. Confirm your tap reading before sizing equipment.

Is hard water in Pocatello, ID 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 Pocatello, ID?

Pocatello, Idaho is served by 9 matched water systems across 2 zip codes.

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