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Water Hardness in 57041

Lyons, South Dakota · Minnehaha County

250 PPM
14.6 GPG
Very Hard
0Soft60120180300+
Verified - Annual Water Quality Report

Dataset updated March 9, 2026Matched to 3 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 3 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
3 verified treated-water sources
3 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 57041

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.

3 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.
Sioux Falls
SD4600294
Very Hard
250 PPMsurface water216,462 servedVerified - Annual Water Quality Report
Source water: 110 PPM
Minnehaha Community Water Corp
SD4600432
Very Hard
250 PPMgroundwater13,435 servedVerified - Annual Water Quality Report
Source water: 443 PPM
Brandon
SD4600048
Very Hard
250 PPMgroundwater11,048 servedVerified - Annual Water Quality Report
Source water: 3 PPM

Nearby Zip Codes

570202515700325157018251570552505703325357107250570164435703525157022253571042505710625057105250

What This Means For You

Use this ZIP 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.

MethodologyData sourcesHow 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 Lyons, SD (57041).

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Frequently Asked Questions

Is the water hard in Lyons, SD (57041)?

The average water hardness in 57041 is 250 PPM (14.6 GPG), which is classified as very hard.

Do I need a water softener in 57041?

With hardness of 250 PPM, a water softener is recommended for homes in 57041.

Is hard water in 57041 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 57041?

Zip code 57041 in Lyons, South Dakota is served by 3 water systems.

Learn More About Your Water

How to Test Water Hardness at Home

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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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Well Water Hardness: Why It's Usually Hard & How to Treat It

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