⟁ Montana Well Data field records · 2026 survey

Montana Well Data › Fergus County

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

✓ 3,752 GWIC records · verified 2026-06-10

126 ftmedian well depth
50 ft–300 fttypical depth range
32 ftmedian static water level
15 gpmmedian yield (2,999 tests)

How deep are wells in Fergus County, Montana?

The median drilled well depth in Fergus County is 126 ft, based on 3,645 wells with recorded depths in the state GWIC database. Half of all wells fall between 50 ft and 300 ft; 90% are shallower than 600 ft. Wells drilled since 2016 have a median depth of 110 ft.

How much does it cost to drill a well in Fergus 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–$12,100. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Fergus County?

The median static water level is 32 ft below ground surface (middle half of wells: 14 ft–75 ft), from 2,937 measurements.

How much water do wells in Fergus County produce?

The median tested yield is 15 gpm (middle half: 8 gpm–25 gpm), from 2,999 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 878 50–100 ft 587 100–150 ft 531 150–200 ft 300 200–300 ft 422 300–400 ft 275 400–600 ft 286 600+ ft 366

Who drills wells in Fergus County?

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

Drilling companyWells since 2016
CENTRAL DRILLING INC233
MONTANA SALINITY CONTROL ASSOCIATION159
SINGLEY DRILLING56
HOLE WORLD CONSULTING LLC30
HAZ TECH DRILLING INC17
AQUASOURCE DRILLING LLC8
OLYMPUS TECHNICAL SERVICES7
VIDIC DRILLING INC6

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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.