Service areas / Milwaukee
Water softeners and filtration in Milwaukee, WI
How hard is Milwaukee water?
Hardness reported by Milwaukee Water Works: 137 mg/L (8.01 grains per gallon), range 112 to 142 mg/L (Undated web page).
Moderately hard to hard Milwaukee Water Works's figures for Milwaukee read as moderately hard to hard on the USGS scale.
Source: Water hardness (City of Milwaukee FAQ). Sources last checked October 28, 2026.
Milwaukee, WI water at a glance
- Water utility
- Milwaukee Water Works
- Published hardness
- 112 to 142 mg/L, about 6.5 to 8.3 grains per gallon, moderately hard to hard on the USGS scale (source)
- Sources last checked
- October 28, 2026
What does Milwaukee Water Works publish about Milwaukee water?
Milwaukee Water Works publishes one hardness figure for the city and describes its water as moderately hard.
| Measure | As published | Period | Source |
|---|---|---|---|
| Hardness | 137 mg/L (8.01 grains per gallon), range 112 to 142 mg/L | Undated web page | Water hardness (City of Milwaukee FAQ) |
- The city calls this moderately hard. On the USGS scale used on this site, 121 to 180 mg/L counts as hard.
- The page carries no date.
What does 112 to 142 mg/L mean for a Milwaukee home?
112 to 142 mg/L is about 6.5 to 8.3 grains per gallon. The low end, 112 mg/L, is 8 mg/L under the 120 mg/L top of the USGS moderately hard class; Milwaukee's high end, 142 mg/L, is 38 mg/L under the 180 mg/L top of the USGS hard class. (USGS hardness classes)
Which systems fit Milwaukee water?
How does a Milwaukee quote work?
- Send a request from one of the 21 Milwaukee ZIP codes listed below.
- An assessment at your home, where your tap can be checked against Milwaukee Water Works's published 112 to 142 mg/L.
- You get a written quote listing what is included.
- Installation and service by that company.
Common questions
- How hard is the water in Milwaukee?
- Hardness reported by Milwaukee Water Works: 137 mg/L (8.01 grains per gallon), range 112 to 142 mg/L (Undated web page).
- Is Milwaukee water hard or soft?
- Moderately hard to hard. The low end, 112 mg/L, is 8 mg/L under the 120 mg/L top of the USGS moderately hard class; Milwaukee's high end, 142 mg/L, is 38 mg/L under the 180 mg/L top of the USGS hard class.
- How many grains per gallon is Milwaukee water?
- In grains per gallon, as published: 8.01 grains per gallon (Milwaukee Water Works, hardness, Undated web page).
- How does Milwaukee water compare with nearby cities?
- Published hardness in Milwaukee spans 112 to 142 mg/L. Covered cities near Milwaukee: Madison 308 to 580 mg/L (converted from grains). Each figure comes from that city's own utility, not from Milwaukee's.
- Do I need a water softener in Milwaukee?
- Milwaukee Water Works publishes 112 to 142 mg/L for Milwaukee, which reads as moderately hard to hard. A test at your house shows whether your tap matches it.
- Which water treatment system fits a Milwaukee home?
- Milwaukee's published 112 to 142 mg/L reads as moderately hard to hard, which is what a softener treats. The installing company tests the water at your Milwaukee address before quoting.
- Is the water the same in every Milwaukee home?
- Milwaukee Water Works publishes one figure for its whole system (Undated web page).
- Does a water softener remove chlorine?
- No. A softener targets hardness, not the disinfectant Milwaukee Water Works adds.
- How much does a water softener cost in Milwaukee?
- We publish no prices for Milwaukee. The installing company gives a written quote after an assessment at your home.
- Who installs the system?
- We have not named a local installing company for Milwaukee yet. We will tell you the company's name and ask you before your request is shared with anyone.
- Is My Home Water System part of the Milwaukee city government or water utility?
- No. My Home Water System is not affiliated with Milwaukee Water Works; it copies and links the published figures.
- Is booking an assessment a purchase?
- No, and a request commits you to nothing.
ZIP codes this page covers
53202, 53203, 53204, 53205, 53206, 53207, 53208, 53209, 53210, 53212, 53215, 53216, 53218, 53219, 53221, 53222, 53223, 53224, 53225, 53233, 53295
Compare Milwaukee with other cities on hard water by city.