Montana Well Data › Fallon County
Fallon County, Montana: well depth, water level & drilling cost
✓ 1,842 GWIC records · verified 2026-07-27
How deep are wells in Fallon County, Montana?
The median drilled well depth in Fallon County is 180 ft, based on 1,764 wells with recorded depths in the state GWIC database. Half of all wells fall between 82 ft and 400 ft; 90% are shallower than 800 ft. Wells drilled since 2016 have a median depth of 190 ft.
How much does it cost to drill a well in Fallon County?
Applying published per-foot rates to the local median depth of 190 ft: drilling and casing alone typically runs $4,750–$12,350; a complete system including pump, pressure tank, and hookup typically runs $11,400–$19,000. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in Fallon County?
The median static water level is 70 ft below ground surface (middle half of wells: 30 ft–120 ft), from 1,273 measurements.
How much water do wells in Fallon County produce?
The median tested yield is 10 gpm (middle half: 5 gpm–15 gpm), from 1,463 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Fallon County?
Companies by number of wells completed in this county since 2016, per filed well logs.
See every driller with wells on record in Fallon County, ranked →
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See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
Free lookup Property report — $19Method: 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.