⟁ South Dakota Well Data field records · 2026 survey

South Dakota Well Data › Pennington County › Rapid City (57709)

Rapid City, SD (57709): well depth, water level & drilling cost

✓ 668 SD DANR records · Pennington County

225 ftmedian well depth
31 ft–440 fttypical depth range
138 ftmedian static water level
—median yield (— tests)

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How deep are wells in and around Rapid City (57709), South Dakota?

The median drilled well depth in and around Rapid City (57709) is 225 ft, based on 667 wells with recorded depths in the state SD DANR database. Half fall between 31 ft and 440 ft; 90% are shallower than 780 ft.

How much does it cost to drill a well in and around Rapid City (57709)?

Applying published per-foot rates to the local median depth of 225 ft: drilling and casing alone typically runs $5,625–$14,625; a complete system including pump, pressure tank, and hookup typically runs $13,500–$22,500. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Rapid City (57709)?

The median static water level is 138 ft below ground surface (middle half of wells: 63 ft–275 ft), from 61 measurements.

Drilled depth distribution

0–50 ft 196 50–100 ft 31 100–150 ft 28 150–200 ft 27 200–300 ft 110 300–400 ft 86 400–600 ft 70 600+ ft 119
Looking at a specific property in Rapid City (57709)?

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Part of Pennington County well records.

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), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.