Montana Well Data › Yellowstone County
Yellowstone County, Montana: well depth, water level & drilling cost
✓ 15,405 GWIC records · verified 2026-10-02
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How deep are wells in Yellowstone County, Montana?
The median drilled well depth in Yellowstone County is 35 ft, based on 15,064 wells with recorded depths in the state GWIC database. Half of all wells fall between 25 ft and 78 ft; 90% are shallower than 190 ft. Wells drilled since 2016 have a median depth of 33 ft.
How much does it cost to drill a well in Yellowstone County?
Applying published per-foot rates to the local median depth of 33 ft: drilling and casing alone typically runs $825–$2,145; a complete system including pump, pressure tank, and hookup typically runs $1,980–$3,300. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Yellowstone County?
The median static water level is 15 ft below ground surface (middle half of wells: 10 ft–27 ft), from 13,670 measurements.
How much water do wells in Yellowstone County produce?
The median tested yield is 24 gpm (middle half: 12 gpm–35 gpm), from 12,400 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Yellowstone County?
Companies by number of wells completed in this county since 2016, per filed well logs.
| Driller | Wells since 2016 |
|---|---|
| AMERICAN DRILLING & SUPPLY | 613 |
| BERTRAM DRILLING INC | 336 |
| AAQUA DRILLING INC | 309 |
| HAZ TECH DRILLING INC | 212 |
| MAYES DRILLING INC | 172 |
| A-1 DRILLING | 160 |
| CASCADE DRILLING LP | 136 |
| GARY'S DRILLING INC. | 71 |
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Well records by ZIP code in Yellowstone County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Billings (59106) — 2,627 wells, median 37 ft
- Laurel (59044) — 2,526 wells, median 34 ft
- Billings (59107) — 2,174 wells, median 65 ft
- Billings (59102) — 1,940 wells, median 28 ft
- Billings (59103) — 1,506 wells, median 25 ft
- Shepherd (59079) — 1,227 wells, median 28 ft
- Billings (59101) — 1,176 wells, median 25 ft
- Huntley (59037) — 676 wells, median 36 ft
- Broadview (59015) — 526 wells, median 130 ft
- Custer (59024) — 464 wells, median 150 ft
- Worden (59088) — 351 wells, median 28 ft
- Pompeys Pillar (59064) — 297 wells, median 70 ft
- Ballantine (59006) — 263 wells, median 31 ft
- Acton (59002) — 197 wells, median 120 ft
- Billings (59105) — 135 wells, median 120 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.