Montana Well Data › Custer County
Custer County, Montana: well depth, water level & drilling cost
✓ 3,225 GWIC records · verified 2026-07-27
How deep are wells in Custer County, Montana?
The median drilled well depth in Custer County is 180 ft, based on 3,109 wells with recorded depths in the state GWIC database. Half of all wells fall between 80 ft and 330 ft; 90% are shallower than 557 ft. Wells drilled since 2016 have a median depth of 230 ft.
How much does it cost to drill a well in Custer County?
Applying published per-foot rates to the local median depth of 230 ft: drilling and casing alone typically runs $5,750–$14,950; a complete system including pump, pressure tank, and hookup typically runs $13,800–$23,000. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in Custer County?
The median static water level is 60 ft below ground surface (middle half of wells: 20 ft–140 ft), from 2,520 measurements.
How much water do wells in Custer County produce?
The median tested yield is 15 gpm (middle half: 8 gpm–20 gpm), from 2,750 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Custer County?
Companies by number of wells completed in this county since 2016, per filed well logs.
See every driller with wells on record in Custer 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.