Helena, MT Well
Drilling Cost
Avg. Depth
160 ft
Cost / Foot
$28–$62
Total Project
$6,720
vs. National Avg
10% below avg.
the $7,500 national avg.
Helena, MT Well Drilling Cost by Depth
| Well Depth | Drilling Only | Complete System | Est. Total |
|---|---|---|---|
| 100 ft | $2,800–$6,200 | $7,600–$11,000 | $9,000 |
| 150 ft | $4,200–$9,300 | $9,400–$14,500 | $11,500 |
| 200 ft | $5,600–$12,400 | $11,200–$18,000 | $14,000 |
| 300 ft | $8,400–$18,600 | $14,800–$25,000 | $19,000 |
| 400 ft | $11,200–$24,800 | $18,400–$32,000 | $24,000 |
| 500 ft | $14,000–$31,000 | $22,000–$39,000 | $29,000 |
*Costs are estimates based on Helena area rates for 2026. Complete system includes casing, pump, pressure tank, electrical, and permits. Actual prices vary by property.
Well Drilling in Helena, MT
Helena Valley alluvial fill in intermontane basin; decomposed granite and Tertiary sediments over Belt Supergroup metamorphic rock
The average residential well in Helena is 160 feet deep and costs approximately $6,720 for a complete system including drilling, casing, pump, and pressure tank. Drilling rates in the area range from $28 to $62 per foot, which is 10% below the national average of $7,500.
The primary aquifer serving the Helena area is the Helena Valley Alluvial / Belt Series Aquifer. Well depths can vary significantly depending on your specific property location and proximity to the aquifer.
Permits & Regulations
Lewis and Clark County well permit; Montana DNRC; $125-$200
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Nearby Areas
Also serving: East Helena, Montana City, Clancy, Lincoln, Townsend
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