Montana Well Data › Beaverhead County
Beaverhead County, Montana: well depth, water level & drilling cost
✓ 4,952 GWIC records · verified 2026-10-02
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How deep are wells in Beaverhead County, Montana?
The median drilled well depth in Beaverhead County is 78 ft, based on 4,857 wells with recorded depths in the state GWIC database. Half of all wells fall between 43 ft and 147 ft; 90% are shallower than 240 ft. Wells drilled since 2016 have a median depth of 120 ft.
How much does it cost to drill a well in Beaverhead County?
Applying published per-foot rates to the local median depth of 120 ft: drilling and casing alone typically runs $3,000–$7,800; a complete system including pump, pressure tank, and hookup typically runs $7,200–$12,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Beaverhead County?
The median static water level is 25 ft below ground surface (middle half of wells: 12 ft–60 ft), from 4,461 measurements.
How much water do wells in Beaverhead County produce?
The median tested yield is 20 gpm (middle half: 15 gpm–33 gpm), from 4,196 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Beaverhead County?
Companies by number of wells completed in this county since 2016, per filed well logs.
| Driller | Wells since 2016 |
|---|---|
| GRAHAM DRILLING INC | 333 |
| LINDSAY DRILLING CO INC | 141 |
| OKEEFE DRILLING CO | 137 |
| AK DRILLING INC. | 19 |
| LINDSAY DRILLING CO | 17 |
| AK DRILLING INC | 13 |
| GRAHAM DRILLING & PUMPS | 11 |
| CASCADE DRILLING LP | 7 |
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Well records by ZIP code in Beaverhead County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Dillon (59725) — 2,966 wells, median 72 ft
- Wisdom (59761) — 421 wells, median 60 ft
- Glen (59732) — 288 wells, median 75 ft
- Jackson (59736) — 243 wells, median 79 ft
- Polaris (59746) — 234 wells, median 120 ft
- Wise River (59762) — 199 wells, median 60 ft
- Dell (59724) — 190 wells, median 79 ft
- Lima (59739) — 119 wells, median 118 ft
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.