Water Hardness in Bemidji, MN

Minnesota · 1 zip codes · 13 matched water systems

86 PPM
5 GPG
Slightly Hard
0Soft60120180300+
Estimated - Nearby Data

Dataset updated March 9, 202613 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

City report

Is Bemidji, MN Water Hard or Soft?

The citywide weighted average water hardness in Bemidji, MN is 86 PPM (5 GPG), classified as slightly hard. Individual systems, ZIP codes, and private wells can differ.

Displayed reading
86 PPM
Slightly Hard
Local coverage
1 ZIP
13 matched water systems
Source label
Nearby estimate
Estimated - Nearby Data

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 13 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
13 estimated sources
This city 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 in Bemidji

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

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.
Bemidji
MN1040002
Slightly Hard
86 PPMgroundwater15,147 servedEstimated - Nearby Data
86 PPMgroundwater150 servedEstimated - Nearby Data
Slightly Hard
86 PPMgroundwater125 servedEstimated - Nearby Data
Slightly Hard
86 PPMgroundwater80 servedEstimated - Nearby Data
Slightly Hard
86 PPMgroundwater80 servedEstimated - Nearby Data
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Bemidji, MN

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 Bemidji, MN.

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Frequently Asked Questions

How hard is the water in Bemidji, MN?

The citywide weighted average water hardness in Bemidji, MN is 86 PPM (5 GPG), classified as slightly hard. This is based on 13 matched water systems.

Do I need a water softener in Bemidji, MN?

At 86 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in Bemidji, MN 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 Bemidji, MN?

Bemidji, Minnesota is served by 13 matched water systems across 1 zip code.

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