South Dakota Well Data › Pennington County

Pennington County, South Dakota: well depth, water level & drilling cost

Name: Pennington County, South Dakota water well statistics
Creator: South Dakota Well Data
License: https://creativecommons.org/licenses/by/4.0/

✓ 4,258 SD DANR records · verified 2026-08-24

115 ftmedian well depth

35 ft–302 fttypical depth range

55 ftmedian static water level

205 ftmedian depth since 2016

How deep are wells in Pennington County, South Dakota?

The median drilled well depth in Pennington County is 115 ft, based on 4,249 wells with recorded depths in the state SD DANR database. Half of all wells fall between 35 ft and 302 ft; 90% are shallower than 636 ft. Wells drilled since 2016 have a median depth of 205 ft.

How much does it cost to drill a well in Pennington County?

Applying published per-foot rates to the local median depth of 205 ft: drilling and casing alone typically runs $5,125–$13,325; a complete system including pump, pressure tank, and hookup typically runs $12,300–$20,500. Actual quotes depend on site access, geology, and casing requirements.

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Drilled depth distribution

0–50 ft 1,499 50–100 ft 443 100–150 ft 432 150–200 ft 248 200–300 ft 491 300–400 ft 315 400–600 ft 344 600+ ft 477

Who drills wells in Pennington County?

Companies by number of wells completed in this county, per the completion reports South Dakota drillers file with DANR.

Driller	Wells since 2016
ALEXANDER DRILLING, INC.	240
TAYLOR DRILLING COMPANY	60
HAMM DRILLING	42
VENEKAMP DRILLING	40
DAKOTA BICE DRILLING, LLC.	39
AMERICAN ENGINEERING TESTING,INC.	24
RAPID DRILLING LLC	23
DENNIS V. JOHNSON DBA DBJ DRILLING LLC	20

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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.