South Dakota Well Data field records · 2026 survey

South Dakota Well Data › Buffalo County

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

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

860 ftmedian well depth
110 ft–1,120 fttypical depth range
17 ftmedian static water level
56 ftmedian depth since 2016

How deep are wells in Buffalo County, South Dakota?

The median drilled well depth in Buffalo County is 860 ft, based on 273 wells with recorded depths in the state SD DANR database. Half of all wells fall between 110 ft and 1,120 ft; 90% are shallower than 1,320 ft. Wells drilled since 2016 have a median depth of 56 ft.

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

Applying published per-foot rates to the local median depth of 56 ft: drilling and casing alone typically runs $1,400–$3,640; a complete system including pump, pressure tank, and hookup typically runs $3,360–$5,600. Actual quotes depend on site access, geology, and casing requirements.

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Drilled depth distribution

0–50 ft 26 50–100 ft 32 100–150 ft 33 150–200 ft 16 200–300 ft 5 300–400 ft 1 400–600 ft 1 600+ ft 159

Who drills wells in Buffalo County?

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

DrillerWells since 2016
STRETCH'S WELL SERVICE, INC.5
AMERICAN ENGINEERING TESTING,INC.5
CAIN DRILLING3
KAISER WELL DRILLING2
KELLER INDUSTRIAL INC2
HUTMACHER DRILLING, INC.1
KELLER DRILLING1

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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.