⟁ Montana Well Data field records · 2026 survey

Montana Well Data › Lake County

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

✓ 8,084 GWIC records · verified 2026-07-27

180 ftmedian well depth
97 ft–325 fttypical depth range
50 ftmedian static water level
25 gpmmedian yield (7,213 tests)

How deep are wells in Lake County, Montana?

The median drilled well depth in Lake County is 180 ft, based on 7,938 wells with recorded depths in the state GWIC database. Half of all wells fall between 97 ft and 325 ft; 90% are shallower than 480 ft. Wells drilled since 2016 have a median depth of 240 ft.

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

Applying published per-foot rates to the local median depth of 240 ft: drilling and casing alone typically runs $6,000–$15,600; a complete system including pump, pressure tank, and hookup typically runs $14,400–$24,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Lake County?

The median static water level is 50 ft below ground surface (middle half of wells: 22 ft–103 ft), from 6,888 measurements.

How much water do wells in Lake County produce?

The median tested yield is 25 gpm (middle half: 14 gpm–50 gpm), from 7,213 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 881 50–100 ft 1,161 100–150 ft 1,241 150–200 ft 989 200–300 ft 1,359 300–400 ft 914 400–600 ft 1,048 600+ ft 345

Who drills wells in Lake County?

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

DrillerWells since 2016
ACE DRILLING359
OH WELL DRILLING AND PUMP232
ALLWEST DRILLING INC193
COLDWATER DRILLING AND PUMPS80
BILLMAYER DRILLING60
JEROMES DRILLING CO58
OH WELL DRILLING & PUMP52
WEST CENTRAL ENVIRONMENTAL CONSULTANTS32

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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.