South Dakota Well Data › Oglala Lakota County
Oglala Lakota County, South Dakota: well depth, water level & drilling cost
✓ 92 SD DANR records · verified 2026-10-19
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How deep are wells in Oglala Lakota County, South Dakota?
The median drilled well depth in Oglala Lakota County is 90 ft, based on 92 wells with recorded depths in the state SD DANR database. Half of all wells fall between 45 ft and 283 ft; 90% are shallower than 396 ft. Wells drilled since 2016 have a median depth of 100 ft.
How much does it cost to drill a well in Oglala Lakota County?
Applying published per-foot rates to the local median depth of 90 ft: drilling and casing alone typically runs $2,250–$5,850; a complete system including pump, pressure tank, and hookup typically runs $5,400–$9,000. Actual quotes depend on site access, geology, and casing requirements.
Drilled depth distribution
Who drills wells in Oglala Lakota County?
Companies by number of wells completed in this county, per the completion reports South Dakota drillers file with DANR.
| Driller | Wells since 2016 |
|---|---|
| FORSTER WELL DRILLING | 33 |
| GEO ENTERPRISES INC | 18 |
| WILD GOOSE WELL DRILLING | 14 |
| AMERICAN ENGINEERING TESTING,INC. | 5 |
| ADAIR DRILLING | 3 |
| TEFERTILLER DRILLING | 2 |
| RAPID DRILLING LLC | 2 |
| AMERICAN ENGINEERING TESTING, INC. | 1 |
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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.