⟁ Montana Well Data field records · 2026 survey

Montana Well Data › Ravalli County

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

✓ 21,992 GWIC records · verified 2026-10-26

75 ftmedian well depth
40 ft–150 fttypical depth range
28 ftmedian static water level
20 gpmmedian yield (20,819 tests)

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How deep are wells in Ravalli County, Montana?

The median drilled well depth in Ravalli County is 75 ft, based on 21,783 wells with recorded depths in the state GWIC database. Half of all wells fall between 40 ft and 150 ft; 90% are shallower than 269 ft. Wells drilled since 2016 have a median depth of 110 ft.

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

Applying published per-foot rates to the local median depth of 110 ft: drilling and casing alone typically runs $2,750–$7,150; a complete system including pump, pressure tank, and hookup typically runs $6,600–$11,000. 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 20,547 measurements.

How much water do wells in Ravalli County produce?

The median tested yield is 20 gpm (middle half: 12 gpm–30 gpm), from 20,819 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 7,088 50–100 ft 6,166 100–150 ft 3,018 150–200 ft 1,733 200–300 ft 2,033 300–400 ft 944 400–600 ft 635 600+ ft 166

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 SERVICE1,100
AQWA DRILLING LLC762
EAGLE DRILLING AND PUMP SERVICE348
JEROMES DRILLING CO175
RAVALLI DRILLING INC167
WESTERN MONTANA DRILLING CO.163
S & S WELL DRILLING, LLC103
CAMP WELL DRILLING AND PUMP SERVICE90

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Well records by ZIP code in Ravalli County

Median depth, water level, and yield for each ZIP code with recorded wells.

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.