North Carolina Well Data › Onslow County
Onslow County, North Carolina: well depth, water level & drilling cost
✓ 851 NC DEQ + USGS records · verified 2026-10-12
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How deep are wells in Onslow County, North Carolina?
The median drilled well depth in Onslow County is 150 ft, based on 848 wells with recorded depths in the state NC DEQ + USGS database. Half of all wells fall between 88 ft and 230 ft; 90% are shallower than 307 ft. Wells drilled since 2016 have a median depth of 136 ft.
How much does it cost to drill a well in Onslow County?
Applying published per-foot rates to the local median depth of 150 ft: drilling and casing alone typically runs $3,750–$9,750; a complete system including pump, pressure tank, and hookup typically runs $9,000–$15,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Onslow County?
The median static water level is 20 ft below ground surface (middle half of wells: 12 ft–30 ft), from 436 measurements.
How much water do wells in Onslow County produce?
The median tested yield is 50 gpm (middle half: 25 gpm–80 gpm), from 426 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Onslow County?
| Driller | Wells since 2016 |
|---|---|
| LLOYD MARES | 8 |
| MICHAEL C SAGE | 6 |
| DAVID REGISTER | 4 |
| Sean Cropsey | 3 |
| Derek Sweeting | 3 |
| SEAN CROPSEY | 3 |
| JOHN SALMON | 2 |
| Michael C Sage | 2 |
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Well records by ZIP code in Onslow County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Richlands (28574) — 88 wells, median 269 ft
- Jacksonville (28540) — 84 wells, median 169 ft
- Holly Ridge (28445) — 79 wells, median 115 ft
- Sneads Ferry (28460) — 79 wells, median 125 ft
- Camp Lejeune (28547) — 56 wells, median 176 ft
- Jacksonville (28546) — 53 wells, median 227 ft
- Hubert (28539) — 50 wells, median 173 ft
Method: medians computed from NC DEQ + USGS records (NC DEQ GW-1 well construction records plus the USGS NWIS inventory, water-supply wells only (monitoring, recovery, injection, remediation and geothermal wells excluded; untyped legacy records kept only with a yield or 50+ ft depth), and USGS rows that duplicate a GW-1 record removed). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.