⟁ North Carolina Well Data field records · 2026 survey

North Carolina Well Data › Onslow County

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

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

195 ftmedian well depth
115 ft–276 fttypical depth range
—median depth since 2016

How deep are wells in Onslow County, North Carolina?

The median drilled well depth in Onslow County is 195 ft, based on 379 wells with recorded depths in the state USGS NWIS database. Half of all wells fall between 115 ft and 276 ft; 90% are shallower than 630 ft. Wells drilled since 2016 have a median depth of —.

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

Applying published per-foot rates to the local median depth of 195 ft: drilling and casing alone typically runs $4,875–$12,675; a complete system including pump, pressure tank, and hookup typically runs $11,700–$19,500. Actual quotes depend on site access, geology, and casing requirements.

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Drilled depth distribution

0–50 ft 45 50–100 ft 36 100–150 ft 42 150–200 ft 78 200–300 ft 93 300–400 ft 22 400–600 ft 18 600+ ft 45
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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.