⟁ Arizona Well Data field records · 2026 survey

Arizona Well Data › Maricopa County

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

✓ 44,399 ADWR records · verified 2026-10-12

332 ftmedian well depth
177 ft–600 fttypical depth range
150 ftmedian static water level
25 gpmmedian yield (13,977 tests)

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How deep are wells in Maricopa County, Arizona?

The median drilled well depth in Maricopa County is 332 ft, based on 36,339 wells with recorded depths in the state ADWR database. Half of all wells fall between 177 ft and 600 ft; 90% are shallower than 800 ft. Wells drilled since 2016 have a median depth of 320 ft.

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

Applying published per-foot rates to the local median depth of 320 ft: drilling and casing alone typically runs $8,000–$20,800; a complete system including pump, pressure tank, and hookup typically runs $19,200–$32,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Maricopa County?

The median static water level is 150 ft below ground surface (middle half of wells: 75 ft–320 ft), from 31,919 measurements.

How much water do wells in Maricopa County produce?

The median tested yield is 25 gpm (middle half: 10 gpm–100 gpm), from 13,977 pump tests. A typical household needs 5–10 gpm.

Drilled depth distribution

0–50 ft 1,337 50–100 ft 2,659 100–150 ft 3,335 150–200 ft 2,827 200–300 ft 5,832 300–400 ft 4,048 400–600 ft 7,115 600+ ft 9,186
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Well records by ZIP code in Maricopa County

Median depth, water level, and yield for each ZIP code with recorded wells.

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.