Water Hardness in Minnesota Cities

Water Hardness in Minnesota Cities

Water hardness in Minnesota, characterized by the amount of dissolved minerals such as calcium and magnesium, can significantly differ among various cities across the state due to its varied geological landscapes. Situated in the Midwestern region of the U.S., Minnesota’s water hardness levels reflect the geological diversity within the state.

Across Minnesota, water hardness can range from moderately soft to significantly hard, depending on the geological make-up of the area and the source of the water supply. For example, many areas in Minnesota have not provided data on water hardness, indicating a potential range of variability. On the other hand, regions with recorded levels suggest hardness owing to the mineral composition of their water supply.

The variation in water hardness throughout Minnesota influences not only the taste and aesthetics of the water but also the efficiency of soaps and detergents, plumbing maintenance, and the lifespan of appliances that utilize water. Given the state’s considerable geological diversity, water hardness is not uniform, highlighting the need for localized water treatment solutions and ongoing monitoring of water quality.

In the provided data, the water hardness levels show substantial variations across different cities in Minnesota. Among the cities for which data is reported, the highest water hardness level is recorded in Chaska with a hardness ppm of 445.1 and a hardness gpg of 26.0. Conversely, the city with the lowest recorded water hardness level is Bloomington, reporting a hardness ppm of 89.0 and a hardness gpg of 5.2.

City Hardness ppm (mg/L) Hardness gpg Information Source Notes
Minneapolis n/a n/a Link
St. Paul n/a n/a Link
Rochester 280.0 17.0 Link
Bloomington 89.0 5.2 Link Water system softens the water
Duluth n/a n/a Link
Brooklyn Park n/a n/a Link
Plymouth n/a n/a Link
Woodbury n/a n/a Link
Lakeville n/a n/a Link
Blaine n/a n/a Link
Maple Grove n/a n/a Link
St. Cloud n/a n/a Link
Eagan 325.2 19.0 Link
Burnsville 402.3 23.5 Link
Coon Rapids n/a n/a Link
Eden Prairie 90.0 5.3 Link Used the treated value. Untreated is 380.
Apple Valley n/a n/a Link
Edina n/a n/a Link
Minnetonka n/a n/a Link
St. Louis Park 330.0 19.0 Link
Mankato n/a n/a Link
Moorhead n/a n/a Link
Shakopee n/a n/a Link
Maplewood n/a n/a Link Gets water from St. Paul
Cottage Grove 298.0 17.0 Link
Richfield n/a n/a Link Mentions they soften the water, but don’t quantify
Roseville n/a n/a Link
Inver Grove Heights 359.5 21.0 Link
Savage 342.4 20.0 Link
Andover n/a n/a Link
Brooklyn Center n/a n/a Link
Fridley 247.5 14.5 Link
Ramsey n/a n/a Link
Prior Lake 330.0 19.3 Link
Chaska 445.1 26.0 Link
Oakdale n/a n/a Link
Shoreview n/a n/a Link
Rosemount n/a n/a Link
Owatonna n/a n/a Link
Austin 273.9 16.0 Link
Elk River n/a n/a Link
Chanhassen 359.5 21.0 Link
Winona n/a n/a Link
Faribault n/a n/a Link
White Bear Lake n/a n/a Link
Farmington 283.0 16.5 Link
Champlin n/a n/a Link
New Brighton n/a n/a Link
Crystal n/a n/a Link Purchases from Minneapolis
Golden Valley n/a n/a Link
Hastings n/a n/a Link
Columbia Heights n/a n/a Link
Lino Lakes n/a n/a Link
Otsego 256.8 15.0 Link
New Hope n/a n/a Link
Willmar n/a n/a Link
West St. Paul n/a n/a Link Gets water from St. Paul
Northfield 320.0 18.0 Link
Forest Lake n/a n/a Link
South St. Paul n/a n/a Link
Sartell n/a n/a Link
Stillwater n/a n/a Link
St. Michael n/a n/a Link
Hopkins n/a n/a Link
Albert Lea n/a n/a Link
Anoka n/a n/a Link
Red Wing n/a n/a Link
Ham Lake n/a n/a Link Might be largely wellwater, only see watershed management, no consumer reports
Buffalo 359.5 21.0 Link
Hugo n/a n/a Link
Hibbing n/a n/a Link
Bemidji n/a n/a Link
Hutchinson n/a n/a Link
Monticello n/a n/a Link
North Mankato n/a n/a Link
Alexandria 428.0 25.0 Link
Brainerd n/a n/a Link
Robbinsdale n/a n/a Link
New Ulm n/a n/a Link
Fergus Falls n/a n/a Link
Sauk Rapids n/a n/a Link
Worthington n/a n/a Link
Marshall 136.9 8.0 Link
Rogers n/a n/a Link
Waconia n/a n/a Link
Mounds View n/a n/a Link
Lake Elmo n/a n/a Link
Cloquet n/a n/a Link
Vadnais Heights n/a n/a Link
North St. Paul n/a n/a Link
Big Lake n/a n/a Link
East Bethel n/a n/a Link
St. Peter n/a n/a Link
Mendota Heights n/a n/a Link Provided by St. Paul
Grand Rapids n/a n/a Link
North Branch 273.0 15.9 Link
Victoria n/a n/a Link
Little Canada n/a n/a Link
Fairmont n/a n/a Link
Hermantown n/a n/a Link
Top 100 Minnesota cities by population and their reported water hardness
ppm = Parts Per Million
mg/L = Milligrams Per Liter
gpg = Grains Per Gallon

Hard water can cause issues such as mineral buildup in plumbing and appliances, reduce the efficacy of soaps and detergents, and affect the taste of the water. A tried and true solution is the use of a water softener. A water softener, like the ones from DROP, could be a worthwhile investment.

These devices work by replacing the calcium and magnesium ions that cause hardness with sodium ions, resulting in softer water. With innovative features, easy installation, and efficient operation, DROP smart water softeners provide a solution to hard water issues, extending the lifespan of appliances, improving water taste, enhancing soap effectiveness, reducing scale build-up, and increasing the overall water efficiency in your home.

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