⟁ Arizona Well Data field records · 2026 survey

Arizona Well Data › Pima County

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

✓ 18,275 ADWR records · verified 2026-08-20

335 ftmedian well depth
190 ft–500 fttypical depth range
170 ftmedian static water level
25 gpmmedian yield (6,559 tests)

How deep are wells in Pima County, Arizona?

The median drilled well depth in Pima County is 335 ft, based on 14,115 wells with recorded depths in the state ADWR database. Half of all wells fall between 190 ft and 500 ft; 90% are shallower than 725 ft. Wells drilled since 2016 have a median depth of 500 ft.

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

Applying published per-foot rates to the local median depth of 500 ft: drilling and casing alone typically runs $12,500–$32,500; a complete system including pump, pressure tank, and hookup typically runs $30,000–$50,000. Actual quotes depend on site access, geology, and casing requirements.

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What is the static water level in Pima County?

The median static water level is 170 ft below ground surface (middle half of wells: 90 ft–293 ft), from 10,757 measurements.

How much water do wells in Pima County produce?

The median tested yield is 25 gpm (middle half: 11 gpm–50 gpm), from 6,559 pump tests. A typical household needs 5–10 gpm.

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Drilled depth distribution

0–50 ft 482 50–100 ft 752 100–150 ft 1,330 150–200 ft 1,092 200–300 ft 2,295 300–400 ft 2,217 400–600 ft 3,510 600+ ft 2,437
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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.