Montana well logs, made useful.
Depth, water level, yield, and the original driller's report — for every recorded well near any Montana address.
✓ Verified against GWIC · 2026-08-24
100 ftmedian well depth statewide
33 ftmedian static water level
20 gpmmedian well yield
38,598wells drilled since 2016
From recent buyers
“Between the report and your correspondence I feel I got way more than my money's worth… it has even removed a ton of stress.”
“Thank you, fantastic and good information. Worth far more than what I paid — your time especially!”
“The report was very helpful and answered my questions.”
What you can answer here
- How deep will my well need to be? Median and range of actual drilled depths near you — not national averages.
- What will it cost? Local median depth × published per-foot rates, with the math shown.
- Will it produce enough water? Yields from pump tests on nearby wells.
- Who drills around here? The drillers who actually filed recent well logs in your county.
These are GWIC records
Every figure here comes from Montana Bureau of Mines and Geology Ground Water Information Center (GWIC) — the state's official well-log repository. We index those same records by location so you can start from an address, and every well links back to its original filed log.
Buying property with a well — or land you'd need to drill?
See every recorded well near any Montana address: depths, static water levels, tested yields, driller names, and links to every original well log — all in one report.
Get the property report — $39Driller, agent, or inspector? Unlimited & white-label plans →
Well data by county
Beaverhead County 4,941 wells · median 78 ft Big Horn County 3,648 wells · median 68 ft Blaine County 1,845 wells · median 77 ft Broadwater County 3,949 wells · median 141 ft Carbon County 6,469 wells · median 58 ft Carter County 1,583 wells · median 160 ft Cascade County 7,173 wells · median 110 ft Chouteau County 2,448 wells · median 39 ft Custer County 3,228 wells · median 180 ft Daniels County 1,477 wells · median 55 ft Dawson County 3,888 wells · median 90 ft Deer Lodge County 2,587 wells · median 60 ft Fallon County 1,842 wells · median 180 ft Fergus County 3,762 wells · median 127 ft Flathead County 21,981 wells · median 191 ft Gallatin County 19,739 wells · median 80 ft Garfield County 2,239 wells · median 180 ft Glacier County 1,402 wells · median 95 ft Golden Valley County 986 wells · median 100 ft Granite County 2,399 wells · median 80 ft Hill County 3,289 wells · median 90 ft Jefferson County 5,309 wells · median 181 ft Judith Basin County 1,584 wells · median 100 ft Lake County 8,099 wells · median 180 ft Lewis and Clark County 17,148 wells · median 105 ft Liberty County 1,072 wells · median 38 ft Lincoln County 8,152 wells · median 145 ft Madison County 6,633 wells · median 100 ft Mccone County 1,887 wells · median 118 ft Meagher County 1,271 wells · median 110 ft Mineral County 1,689 wells · median 122 ft Missoula County 15,575 wells · median 100 ft Musselshell County 3,628 wells · median 177 ft Park County 6,572 wells · median 108 ft Petroleum County 777 wells · median 160 ft Phillips County 2,426 wells · median 75 ft Pondera County 1,391 wells · median 35 ft Powder River County 3,931 wells · median 168 ft Powell County 2,443 wells · median 85 ft Prairie County 1,733 wells · median 148 ft Ravalli County 21,943 wells · median 75 ft Richland County 5,004 wells · median 80 ft Roosevelt County 3,952 wells · median 60 ft Rosebud County 4,296 wells · median 100 ft Sanders County 4,904 wells · median 165 ft Sheridan County 2,395 wells · median 99 ft Silver Bow County 4,345 wells · median 95 ft Stillwater County 5,852 wells · median 60 ft Sweet Grass County 2,330 wells · median 85 ft Teton County 3,032 wells · median 30 ft Toole County 843 wells · median 38 ft Treasure County 925 wells · median 80 ft Valley County 3,118 wells · median 68 ft Wheatland County 1,081 wells · median 100 ft Wibaux County 1,384 wells · median 130 ft Yellowstone County 15,385 wells · median 35 ft
Research: homes on well water near documented fuel leaks
We mapped Montana's household wells against the EPA's database of leaking underground fuel tanks — county-by-county results, methodology, and a free data download.
Read the analysis →