South Dakota Well Data › Clark County

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

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

✓ 532 SD DANR records · verified 2026-08-24

153 ftmedian well depth

74 ft–479 fttypical depth range

50 ftmedian static water level

135 ftmedian depth since 2016

How deep are wells in Clark County, South Dakota?

The median drilled well depth in Clark County is 153 ft, based on 532 wells with recorded depths in the state SD DANR database. Half of all wells fall between 74 ft and 479 ft; 90% are shallower than 1,056 ft. Wells drilled since 2016 have a median depth of 135 ft.

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

Applying published per-foot rates to the local median depth of 135 ft: drilling and casing alone typically runs $3,375–$8,775; a complete system including pump, pressure tank, and hookup typically runs $8,100–$13,500. Actual quotes depend on site access, geology, and casing requirements.

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Drilled depth distribution

0–50 ft 77 50–100 ft 116 100–150 ft 67 150–200 ft 52 200–300 ft 32 300–400 ft 24 400–600 ft 48 600+ ft 116

Who drills wells in Clark County?

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

Driller	Wells since 2016
STRETCH'S WELL SERVICE, INC.	37
THEIN WELL COMPANY, INC.	15
PULLMAN WELL DRILLING	8
STEFFL DRILLING & PUMP, INC.	6
KAISER WELL DRILLING	4
GEOTEK ENGINEERING & TESTING	2
LACEY WELL DRILLING	1
WIEBER WELL DRILLING	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.