⟁ North Carolina Well Data field records · 2026 survey

North Carolina Well Data › Union County

Union County, North Carolina: well depth, owners & drilling cost

✓ 140 USGS NWIS records · verified 2026-08-27

121 ftmedian well depth
87 ft–179 fttypical depth range
—median depth since 2016

How deep are wells in Union County, North Carolina?

The median drilled well depth in Union County is 121 ft, based on 140 wells with recorded depths in the state USGS NWIS database. Half of all wells fall between 87 ft and 179 ft; 90% are shallower than 256 ft. Wells drilled since 2016 have a median depth of —.

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

Applying published per-foot rates to the local median depth of 121 ft: drilling and casing alone typically runs $3,025–$7,865; a complete system including pump, pressure tank, and hookup typically runs $7,260–$12,100. Actual quotes depend on site access, geology, and casing requirements.

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Drilled depth distribution

0–50 ft 4 50–100 ft 46 100–150 ft 39 150–200 ft 27 200–300 ft 12 300–400 ft 12 400–600 ft 0 600+ ft 0
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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.