Arizona Well Data › Pima County
Pima County, Arizona: well depth, water level & drilling cost
✓ 23,199 ADWR records · verified 2026-10-12
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How deep are wells in Pima County, Arizona?
The median drilled well depth in Pima County is 330 ft, based on 18,164 wells with recorded depths in the state ADWR database. Half of all wells fall between 190 ft and 500 ft; 90% are shallower than 720 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.
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–295 ft), from 13,890 measurements.
How much water do wells in Pima County produce?
The median tested yield is 25 gpm (middle half: 11 gpm–45 gpm), from 8,140 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
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Well records by ZIP code in Pima County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Green Valley (85622) — 1,777 wells, median 440 ft
- Sahuarita (85629) — 1,301 wells, median 400 ft
- Vail (85641) — 1,276 wells, median 500 ft
- Tucson (85706) — 1,098 wells, median 145 ft
- Marana (85653) — 930 wells, median 500 ft
- Tucson (85705) — 871 wells, median 200 ft
- Arivaca (85601) — 801 wells, median 200 ft
- Tucson (85741) — 780 wells, median 299 ft
- Tucson (85743) — 709 wells, median 530 ft
- Tucson (85747) — 645 wells, median 450 ft
- Green Valley (85614) — 582 wells, median 468 ft
- Tucson (85757) — 524 wells, median 460 ft
- Tucson (85749) — 520 wells, median 220 ft
- Tucson (85745) — 512 wells, median 246 ft
- Tucson (85715) — 479 wells, median 208 ft
- Tucson (85735) — 465 wells, median 500 ft
- Tucson (85734) — 453 wells, median 250 ft
- Tucson (85701) — 437 wells, median 100 ft
- Tucson (85756) — 419 wells, median 280 ft
- Tucson (85742) — 410 wells, median 520 ft
- Tucson (85755) — 409 wells, median 680 ft
- Catalina (85738) — 404 wells, median 325 ft
- Tucson (85712) — 388 wells, median 230 ft
- Tucson (85748) — 350 wells, median 340 ft
- Tucson (85714) — 343 wells, median 174 ft
- Tucson (85704) — 252 wells, median 405 ft
- Tucson (85710) — 233 wells, median 366 ft
- Tucson (85716) — 209 wells, median 228 ft
- Tucson (85726) — 207 wells, median 182 ft
- Tucson (85736) — 191 wells, median 300 ft
- Tucson (85707) — 190 wells, median 380 ft
- Tucson (85730) — 184 wells, median 355 ft
- Tucson (85713) — 176 wells, median 125 ft
- Tucson (85718) — 172 wells, median 256 ft
- Tucson (85739) — 169 wells, median 300 ft
- Tucson (85711) — 167 wells, median 302 ft
- Rillito (85654) — 154 wells, median 450 ft
- Cortaro (85652) — 140 wells, median 446 ft
- Tucson (85750) — 130 wells, median 240 ft
- Tucson (85719) — 118 wells, median 232 ft
- Tucson (85709) — 115 wells, median 301 ft
- Tucson (85746) — 110 wells, median 200 ft
- Tucson (85702) — 108 wells, median 420 ft
- Mount Lemmon (85619) — 105 wells, median 180 ft
- Tucson (85721) — 86 wells, median 215 ft
- Tucson (85737) — 79 wells, median 500 ft
- Sasabe (85633) — 69 wells, median 315 ft
- Tucson (85708) — 53 wells, median 250 ft
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.