⟁ Arizona Well Data field records · 2026 survey

Arizona Well Data › La Paz County › Poston (85371)

Poston, AZ (85371): well depth, water level & drilling cost

✓ 101 ADWR records · La Paz County

368 ftmedian well depth
160 ft–640 fttypical depth range
230 ftmedian static water level
33 gpmmedian yield (38 tests)

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How deep are wells in and around Poston (85371), Arizona?

The median drilled well depth in and around Poston (85371) is 368 ft, based on 58 wells with recorded depths in the state ADWR database. Half fall between 160 ft and 640 ft; 90% are shallower than 960 ft.

How much does it cost to drill a well in and around Poston (85371)?

Applying published per-foot rates to the local median depth of 368 ft: drilling and casing alone typically runs $9,200–$23,920; a complete system including pump, pressure tank, and hookup typically runs $22,080–$36,800. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Poston (85371)?

The median static water level is 230 ft below ground surface (middle half of wells: 12 ft–280 ft), from 45 measurements.

Drilled depth distribution

0–50 ft 11 50–100 ft 1 100–150 ft 1 150–200 ft 8 200–300 ft 4 300–400 ft 5 400–600 ft 12 600+ ft 16
Looking at a specific property in Poston (85371)?

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Part of La Paz County well records.

Method: medians computed from ADWR records (ADWR registered wells, excluding the 51,744 registrations the department has cancelled; depths 0-5,000 ft), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.