⟁ Montana Well Data field records · 2026 survey

Montana Well Data › Ravalli County

Ravalli County, Montana: well depth, water level & drilling cost

✓ 21,892 GWIC records · verified 2026-06-10

74 ftmedian well depth
40 ft–150 fttypical depth range
28 ftmedian static water level
20 gpmmedian yield (20,725 tests)

How deep are wells in Ravalli County, Montana?

The median drilled well depth in Ravalli County is 74 ft, based on 21,683 wells with recorded depths in the state GWIC database. Half of all wells fall between 40 ft and 150 ft; 90% are shallower than 265 ft. Wells drilled since 2016 have a median depth of 107 ft.

How much does it cost to drill a well in Ravalli County?

Applying published per-foot rates to the local median depth of 107 ft: drilling and casing alone typically runs $2,675–$6,955; a complete system including pump, pressure tank, and hookup typically runs $6,420–$11,770. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Ravalli County?

The median static water level is 28 ft below ground surface (middle half of wells: 13 ft–65 ft), from 20,451 measurements.

How much water do wells in Ravalli County produce?

The median tested yield is 20 gpm (middle half: 12 gpm–30 gpm), from 20,725 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 7,081 50–100 ft 6,141 100–150 ft 3,000 150–200 ft 1,723 200–300 ft 2,023 300–400 ft 933 400–600 ft 624 600+ ft 158

Who drills wells in Ravalli County?

Companies by number of wells completed in this county since 2016, per filed well logs.

Drilling companyWells since 2016
ESLINGER DRILLING & PUMP SERVICE1,066
AQWA DRILLING LLC762
EAGLE DRILLING AND PUMP SERVICE325
JEROMES DRILLING CO175
RAVALLI DRILLING INC165
WESTERN MONTANA DRILLING CO.151
S & S WELL DRILLING, LLC96
CAMP WELL DRILLING AND PUMP SERVICE89

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Method: medians computed from GWIC records (site type WELL, non-abandoned; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-10) to the local median depth — full methodology & sources.