⟁ Arizona Well Data field records · 2026 survey

Arizona Well Data › Pinal County

Pinal County, Arizona: well depth, water level & drilling cost

✓ 13,039 ADWR records · verified 2026-08-20

500 ftmedian well depth
260 ft–740 fttypical depth range
240 ftmedian static water level
25 gpmmedian yield (6,036 tests)

How deep are wells in Pinal County, Arizona?

The median drilled well depth in Pinal County is 500 ft, based on 10,456 wells with recorded depths in the state ADWR database. Half of all wells fall between 260 ft and 740 ft; 90% are shallower than 1,008 ft. Wells drilled since 2016 have a median depth of 600 ft.

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

The median static water level is 240 ft below ground surface (middle half of wells: 100 ft–400 ft), from 9,035 measurements.

How much water do wells in Pinal County produce?

The median tested yield is 25 gpm (middle half: 10 gpm–721 gpm), from 6,036 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 424 50–100 ft 736 100–150 ft 516 150–200 ft 286 200–300 ft 873 300–400 ft 1,033 400–600 ft 2,529 600+ ft 4,059
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Method: medians computed from ADWR records (ADWR registered wells, excluding the 51,744 registrations the department has cancelled; depths 0-5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.