⟁ California Well Data field records · 2026 survey

California Well Data › Madera County

Madera County, California: well depth, water level & drilling cost

✓ 18,364 DWR records · verified 2026-08-14

395 ftmedian well depth
295 ft–566 fttypical depth range
174 ftmedian static water level
28 gpmmedian yield (9,065 tests)

How deep are wells in Madera County, California?

The median drilled well depth in Madera County is 395 ft, based on 15,746 wells with recorded depths in the state DWR database. Half of all wells fall between 295 ft and 566 ft; 90% are shallower than 750 ft. Wells drilled since 2016 have a median depth of 600 ft.

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

Applying published per-foot rates to the local median depth of 600 ft: drilling and casing alone typically runs $15,000–$39,000; a complete system including pump, pressure tank, and hookup typically runs $36,000–$60,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Madera County?

The median static water level is 174 ft below ground surface (middle half of wells: 110 ft–242 ft), from 5,764 measurements.

How much water do wells in Madera County produce?

The median tested yield is 28 gpm (middle half: 8 gpm–80 gpm), from 9,065 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 54 50–100 ft 172 100–150 ft 541 150–200 ft 721 200–300 ft 2,491 300–400 ft 3,916 400–600 ft 4,161 600+ ft 3,690

Who drills wells in Madera County?

Companies by number of wells completed in this county since 2016, per filed well completion reports (California Department of Water Resources).

DrillerWells since 2016
HORNER & SONS INC343
BRADLEY & SONS INC223
WELLCO DRILLING INC211
PRECISION WELL DRILLING INC124
VALLEY WELL DRILLING LP123
STRICKLAND ENTERPRISES INC110
PRIETO ANTHONY J WATER WELL DRILLING INC108
WALT BANNON DRILLING INC92

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Method: 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.