Spearfish, SD Well
Drilling Cost
Avg. Depth
200 ft
Cost / Foot
$24–$55
Total Project
$7,600
vs. National Avg
Near average
the $7,500 national avg.
Spearfish, SD Well Drilling Cost by Depth
| Well Depth | Drilling Only | Complete System | Est. Total |
|---|---|---|---|
| 100 ft | $2,400–$5,500 | $7,200–$10,300 | $8,600 |
| 150 ft | $3,600–$8,250 | $8,800–$13,450 | $10,900 |
| 200 ft | $4,800–$11,000 | $10,400–$16,600 | $13,200 |
| 300 ft | $7,200–$16,500 | $13,600–$22,900 | $17,800 |
| 400 ft | $9,600–$22,000 | $16,800–$29,200 | $22,400 |
| 500 ft | $12,000–$27,500 | $20,000–$35,500 | $27,000 |
*Costs are estimates based on Spearfish area rates for 2026. Complete system includes casing, pump, pressure tank, electrical, and permits. Actual prices vary by property.
Well Drilling in Spearfish, SD
Northern Black Hills with Spearfish Formation red shale and gypsum over Minnekahta Limestone; Spearfish Creek canyon demonstrates local hydrogeology
The average residential well in Spearfish is 200 feet deep and costs approximately $7,600 for a complete system including drilling, casing, pump, and pressure tank. Drilling rates in the area range from $24 to $55 per foot, which is near the national average of $7,500.
The primary aquifer serving the Spearfish area is the Madison / Minnelusa / Spearfish Aquifer. Well depths can vary significantly depending on your specific property location and proximity to the aquifer.
Permits & Regulations
Lawrence County well permit; SD DENR; $25-$50
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Nearby Areas
Also serving: Belle Fourche, Lead, Deadwood, Whitewood, St. Onge
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