Water Hardness Atlas ZIP / postcode

Water hardness in Reedsburg

9.4 gpg hard

Tap water in Reedsburg is hard: 9.4 gpg (161 mg/L · 9 °dH · 16.1 °fH).

<6060–120120–180>180 mg/L

Source: Wisconsin DNR Drinking Water System portal (Reedsburg Waterworks) (2026) · data checked 2026-10-20

Range across supply zones: 116–229 mg/L.

Reedsburg, Wisconsin, is served by Reedsburg Waterworks. The Wisconsin DNR portal reports 161 mg/L as CaCO₃, with a range of 116 to 229 mg/L. The median is in the hard band, but readings can fall in the moderate or very hard bands depending on the sample.

USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.

Water data

Total hardness9.4 gpg
UtilityReedsburg Waterworks

How Reedsburg compares

Ranking of the hardest and softest water in the United States →

What it means at home

How much salt will you use for softening?

Recommended, especially with a heater or boiler: scale cuts efficiency and shortens its life.

Descale a coffee machine or kettle about every 2 months (typical manufacturer guidance for this hardness).

Estimates for planning, not a quote. Check your appliance manual for exact settings.

Dishwasher setting in Reedsburg

BrandSetting for this water
BoschH02
Miele9 °dH
AEG / Electrolux2
Beko3rd
HooverS1
LGH2

From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →

FAQ

Is Reedsburg water hard or soft?

It is hard: 161 mg/L as CaCO₃ (9.4 gpg, 9 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.

Is tap water in Reedsburg safe to drink?

Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.

How many grains per gallon is Reedsburg water?

9.4 gpg, equal to 9 °dH, 16.1 °fH or 161 mg/L calcium carbonate.

What dishwasher salt setting should I use in Reedsburg?

For 161 mg/L (9 °dH) check your manufacturer's table: level 4–5.

Do I need a water softener in Reedsburg?

Recommended if you have a water heater, boiler or tankless unit: it saves repairs and detergent.

Source

Source: Wisconsin DNR Drinking Water System portal (Reedsburg Waterworks) (2026). Method: figure published by the water supplier. Wisconsin DNR Drinking Water System portal (Reedsburg Waterworks) · Outdated figure? Tell us

Nearby cities

Rock Springs6.1 gpgLoganville12.4 gpgLa Valle8.9 gpgNorth Freedom10.2 gpgCazenovia11.8 gpgLake Delton6 gpg
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