Montana Well Data › Ravalli County
Ravalli County, Montana: well depth, water level & drilling cost
✓ 21,971 GWIC records · verified 2026-10-02
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How deep are wells in Ravalli County, Montana?
The median drilled well depth in Ravalli County is 75 ft, based on 21,762 wells with recorded depths in the state GWIC database. Half of all wells fall between 40 ft and 150 ft; 90% are shallower than 268 ft. Wells drilled since 2016 have a median depth of 110 ft.
How much does it cost to drill a well in Ravalli 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–$11,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Ravalli County?
The median static water level is 28 ft below ground surface (middle half of wells: 13 ft–65 ft), from 20,527 measurements.
How much water do wells in Ravalli County produce?
The median tested yield is 20 gpm (middle half: 12 gpm–30 gpm), from 20,798 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Ravalli County?
Companies by number of wells completed in this county since 2016, per filed well logs.
| Driller | Wells since 2016 |
|---|---|
| ESLINGER DRILLING & PUMP SERVICE | 1,092 |
| AQWA DRILLING LLC | 762 |
| EAGLE DRILLING AND PUMP SERVICE | 344 |
| JEROMES DRILLING CO | 175 |
| RAVALLI DRILLING INC | 165 |
| WESTERN MONTANA DRILLING CO. | 161 |
| S & S WELL DRILLING, LLC | 103 |
| CAMP WELL DRILLING AND PUMP SERVICE | 89 |
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Well records by ZIP code in Ravalli County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Stevensville (59870) — 4,494 wells, median 108 ft
- Corvallis (59828) — 3,754 wells, median 72 ft
- Florence (59833) — 3,633 wells, median 87 ft
- Victor (59875) — 2,965 wells, median 58 ft
- Hamilton (59840) — 2,638 wells, median 48 ft
- Grantsdale (59835) — 2,369 wells, median 55 ft
- Darby (59829) — 1,201 wells, median 61 ft
- Pinesdale (59841) — 1,173 wells, median 119 ft
- Conner (59827) — 745 wells, median 50 ft
- Sula (59871) — 407 wells, median 59 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.