California Well Data › San Diego County
San Diego County, California: well depth, water level & drilling cost
✓ 25,782 DWR records · verified 2026-08-14
How deep are wells in San Diego County, California?
The median drilled well depth in San Diego County is 305 ft, based on 19,059 wells with recorded depths in the state DWR database. Half of all wells fall between 153 ft and 590 ft; 90% are shallower than 880 ft. Wells drilled since 2016 have a median depth of 300 ft.
How much does it cost to drill a well in San Diego County?
Applying published per-foot rates to the local median depth of 300 ft: drilling and casing alone typically runs $7,500–$19,500; a complete system including pump, pressure tank, and hookup typically runs $18,000–$30,000. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in San Diego County?
The median static water level is 60 ft below ground surface (middle half of wells: 25 ft–130 ft), from 5,382 measurements.
How much water do wells in San Diego County produce?
The median tested yield is 25 gpm (middle half: 10 gpm–60 gpm), from 14,023 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in San Diego County?
Companies by number of wells completed in this county since 2016, per filed well completion reports (California Department of Water Resources).
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See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
Free lookup Property report — $29Method: medians computed from DWR records (filed well completion reports, water-supply uses only (destruction, repair and monitoring wells excluded); depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.