⟁ Montana Well Data field records · 2026 survey

Montana Well Data › Ravalli County

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

✓ 21,925 GWIC records · verified 2026-07-27

75 ftmedian well depth
40 ft–150 fttypical depth range
28 ftmedian static water level
20 gpmmedian yield (20,758 tests)

How deep are wells in Ravalli County, Montana?

The median drilled well depth in Ravalli County is 75 ft, based on 21,716 wells with recorded depths in the state GWIC database. Half of all wells fall between 40 ft and 150 ft; 90% are shallower than 267 ft. Wells drilled since 2016 have a median depth of 109 ft.

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

Applying published per-foot rates to the local median depth of 109 ft: drilling and casing alone typically runs $2,725–$7,085; a complete system including pump, pressure tank, and hookup typically runs $6,540–$10,900. Actual quotes depend on site access, geology, and casing requirements.

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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 20,483 measurements.

How much water do wells in Ravalli County produce?

The median tested yield is 20 gpm (middle half: 12 gpm–30 gpm), from 20,758 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 7,082 50–100 ft 6,149 100–150 ft 3,008 150–200 ft 1,723 200–300 ft 2,025 300–400 ft 940 400–600 ft 627 600+ ft 162

Who drills wells in Ravalli County?

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

DrillerWells since 2016
ESLINGER DRILLING & PUMP SERVICE1,077
AQWA DRILLING LLC762
EAGLE DRILLING AND PUMP SERVICE331
JEROMES DRILLING CO175
RAVALLI DRILLING INC165
WESTERN MONTANA DRILLING CO.156
S & S WELL DRILLING, LLC99
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 2026-06-11) to the local median depth — full methodology & sources.