Montana Well Data › Fergus County
Fergus County, Montana: well depth, water level & drilling cost
✓ 3,762 GWIC records · verified 2026-08-24
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How deep are wells in Fergus County, Montana?
The median drilled well depth in Fergus County is 127 ft, based on 3,655 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 115 ft.
How much does it cost to drill a well in Fergus County?
Applying published per-foot rates to the local median depth of 115 ft: drilling and casing alone typically runs $2,875–$7,475; a complete system including pump, pressure tank, and hookup typically runs $6,900–$11,500. 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 2,947 measurements.
How much water do wells in Fergus County produce?
The median tested yield is 15 gpm (middle half: 8 gpm–25 gpm), from 3,009 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Fergus County?
Companies by number of wells completed in this county since 2016, per filed well logs.
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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.