⟁ South Carolina Well Data field records · 2026 survey

South Carolina Well Data › Charleston County

Charleston County, South Carolina: well depth, owners & drilling cost

✓ 699 USGS NWIS records · verified 2026-08-28

303 ftmedian well depth
48 ft–540 fttypical depth range
—median depth since 2016

How deep are wells in Charleston County, South Carolina?

The median drilled well depth in Charleston County is 303 ft, based on 699 wells with recorded depths in the state USGS NWIS database. Half of all wells fall between 48 ft and 540 ft; 90% are shallower than 606 ft. Wells drilled since 2016 have a median depth of —.

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

Applying published per-foot rates to the local median depth of 303 ft: drilling and casing alone typically runs $7,575–$19,695; a complete system including pump, pressure tank, and hookup typically runs $18,180–$30,300. Actual quotes depend on site access, geology, and casing requirements.

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Drilled depth distribution

0–50 ft 177 50–100 ft 71 100–150 ft 21 150–200 ft 12 200–300 ft 64 300–400 ft 64 400–600 ft 188 600+ ft 102
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Method: medians computed from USGS NWIS records (USGS NWIS groundwater inventory, water-supply wells only (monitoring wells, test holes and injection wells excluded), and only wells carrying a measured depth). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.