South Dakota Well Data › Ziebach County
Ziebach County, South Dakota: well depth, water level & drilling cost
✓ 390 SD DANR records · verified 2026-10-19
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How deep are wells in Ziebach County, South Dakota?
The median drilled well depth in Ziebach County is 155 ft, based on 390 wells with recorded depths in the state SD DANR database. Half of all wells fall between 102 ft and 200 ft; 90% are shallower than 301 ft. Wells drilled since 2016 have a median depth of 120 ft.
How much does it cost to drill a well in Ziebach County?
Applying published per-foot rates to the local median depth of 155 ft: drilling and casing alone typically runs $3,875–$10,075; a complete system including pump, pressure tank, and hookup typically runs $9,300–$15,500. Actual quotes depend on site access, geology, and casing requirements.
Drilled depth distribution
Who drills wells in Ziebach County?
Companies by number of wells completed in this county, per the completion reports South Dakota drillers file with DANR.
| Driller | Wells since 2016 |
|---|---|
| GREGG'S DRILLING & EXCAVATING | 23 |
| MATHESON DRILLING, INC. | 11 |
| KELLER DRILLING | 6 |
| PESICKA'S DRILLING | 2 |
| KNUTSON WELL DRILLING, INC. | 2 |
| VENEKAMP DRILLING | 1 |
| FOX & GINSBACK WELL DRILLING SERVICE | 1 |
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Well records by ZIP code in Ziebach County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Dupree (57623) — 92 wells, median 128 ft
- Lantry (57636) — 82 wells, median 138 ft
Method: medians computed from SD DANR records (SD DANR NR68 well completion reports, water wells only (monitoring, test-hole, geothermal-loop and dewatering records excluded); depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.