Looking for a water treatment pro in Harlowton, MT? Describe your project once and up to three water treatment pros who work in Harlowton and Wheatland County get back to you with a quote. It's free and there is no obligation.
Harlowton is home to about 944 people (2024 Census Bureau estimate), a shrinking community (−1.2% since 2020). With 1,508 people per sq mi, it is a suburban area. Hard water, well water and new PFAS limits are making water treatment a common project here.
Harlowton at a glance
- Population (Census Bureau estimate, 2024)
- 944 (−1.2% since 2020)
- Rank in Montana
- 56th of 126 cities and towns
- Land area
- 0.6 sq mi
- Population density
- 1,508 people per sq mi (suburban)
- Type
- City (Harlowton city)
- Main county
- Wheatland County
What to check before hiring in Harlowton
- Test first: check your utility's annual water report or test your well.
- Certification: choose NSF/ANSI certified systems.
- Maintenance: ask about filter changes and service costs.
- Price drivers: system type, flow rate, plumbing and maintenance.
Useful official resources
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EPA: PFAS
Official information and guidance.
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NSF: certified water filters
Official information and guidance.
Services available in Harlowton
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Whole house filtration
Point-of-entry filtration for the whole home, sized from a water test.
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Water softener or reverse osmosis
Softener for hard water or reverse osmosis for drinking water.
Frequently asked questions in Harlowton
How much does water filtration cost in Harlowton, MT?
It depends on the system and installation. Describe your situation: pros who serve Harlowton reply with a quote.
Does it need a permit?
Sometimes, for plumbing changes; ask the installer.
How often are filters changed?
It depends on the system and water use; ask for the schedule.
Which water treatment pros will contact me?
Up to three independent water treatment pros who serve Harlowton and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.