Need a lead service line check or replacement in Yellowstone County, MT? Yellowstone County has about 171,583 residents (2024 estimate) and 3 incorporated cities and towns. Describe your project once: licensed plumbers who work in Yellowstone County get back to you.
Each water utility serving Yellowstone County publishes its own service line inventory and replacement program.
Services available in Yellowstone County
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Lead service line replacement
Replacement of the private side of a lead or galvanized service line, coordinated with the water utility.
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Service line material check
Identification of the service line material at the meter and the entry point, for the utility inventory or a purchase.
Frequently asked questions in Yellowstone County
Do licensed plumbers cover the whole of Yellowstone County?
Most pros work across the county and neighboring counties. Enter your ZIP code in the form and we match you with pros who serve your exact area.
Lead Pipe Replacement in Montana: all counties
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.