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Cost to drill a well in Arizona: $15,500–$71,200 by county

A drilled, finished water well in Arizona typically costs $15,500–$71,200, with a midpoint of $39,500. Depth sets most of that price. Domestic wells here have a median depth of 410 ft across 7,329 completion reports filed 2016–2025, priced at Arizona driller rates.1,2,3,4,5,6

Key figures for Arizona

ItemFigure
Finished well, typical range (midpoint $39,500) $15,500–$71,2001,2,3,4,5,6
Drilling and casing only (no pump, tank, or hookup) $11,900–$59,7001,2,3,4,5
Median well depth (7,329 reports) 410 ft1
Middle half of wells 280 ft to 600 ft1
Drilling rate (Arizona rates) $30–$65/ft2
Median casing depth 400 ft1
Median reported yield 10 gpm1

Estimate a well in Arizona

Typical total: $15,500–$71,200, midpoint $39,500.1,2,3,4,5,6

Depths from 7,329 domestic well reports in Arizona, 2016–2025: 280 ft (25th percentile), 405 ft (median), 600 ft (75th percentile).

Low uses the 25th percentile depth at low rates; high uses the 75th percentile at high rates.
Line itemLowMidHigh
Drilling (per foot of depth) (405 ft × $48/ft)$8,400$19,200$39,0002
Casing, installed (400 ft × $28/ft)$2,800$11,000$18,0003
Rig mobilization and setup ($550–$2,500)$600$1,500$2,5004
Well permit ($100–$150)$100$100$2005
Pump, wire, and drop pipe, installed ($1,500–$3,000)$1,500$2,300$3,0002
Pressure tank and switch, installed ($500–$1,200)$500$900$1,2002
Trench, water line, and electrical to the house ($1,500–$7,000)$1,500$4,300$7,0002
Water quality test ($50–$250)$100$200$3006
Total$15,500$39,500$71,200

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Well depth by county in Arizona

Total depth of domestic wells by county, Arizona. Bar shows the middle half of wells; tick marks the median.
County Reports Median depth (ft) Middle half (ft) 0 to 740 ft
Yavapai 2,371 450 340–550
Maricopa 1,406 400 240–600
Mohave 911 400 200–650
Cochise 543 400 280–600
Pinal 379 600 500–740
Navajo 324 420 320–580
Pima 286 500 400–680
Santa Cruz 231 350 280–400
Coconino 192 240 200–450
Yuma 162 200 190–210
Gila 152 240 130–340
Apache 119 380 260–530
Graham 115 160 120–300
La Paz 105 350 240–430
Greenlee 33 140 110–200

Median depth runs from 140 ft in Greenlee County to 600 ft in Pinal County. At Arizona rates that difference is worth about $34,700 at the midpoint estimate.

Sources1,2,3,4,5,6

Where the money goes on a Arizona well

Drilling is billed by the foot at $30–$65/ft, so the hole alone runs $8,400–$39,000 at the depths above. Casing, the steel or PVC pipe that lines the upper borehole, adds $2,800–$18,000 at $10–$45/ft. Rig setup is a flat $600–$2,500.

The pump, pressure tank, and trench to the house add $3,500–$11,200 on top of the hole. A quote that looks low next to the range above often leaves those three out, so ask for it itemized.

Sources2,3,4,5,6

Permits and driller licensing in Arizona

Water wells in Arizona fall under Arizona Department of Water Resources, Wells and Drilling. A notice of intention to drill must be filed with the director of the Arizona Department of Water Resources before an exempt domestic well is drilled or an existing well is deepened, inside or outside an active management area. The notice names the driller and the driller's license number and gives the well's location, depth, casing, and planned use. The notice must include proof that the driller holds a valid license from the Arizona Registrar of Contractors of the type needed for the well, unless the director accepts proof that the driller is exempt under A.R.S. 32-1121. The driller files a well driller report with ADWR within thirty days of completing the well, and the registered well owner files a separate completion report within thirty days after the pump is installed. The permit or filing fee runs $100–$200.

Sources5,7

Groundwater and well construction in Arizona

Well cap Submersible pump Casing to about 400 ft Total depth about 410 ft Soil and loose rock Open hole in rock
Cross-section of a 410 ft well with casing to 400 ft, the Arizona median

Southern Arizona wells draw from the Basin and Range aquifers, beds of gravel, sand, silt, and clay that filled desert valleys between small mountain ranges. Northern and northeastern Arizona sit on the Colorado Plateaus, where wells tap sedimentary rock aquifers such as the Coconino-De Chelly aquifer and the Dakota-Glen Canyon aquifer system, and in some areas only small amounts come from Chinle Formation sandstone or the Kaibab Limestone.

A well at the Arizona median reaches 410 ft with casing to about 400 ft. Except for monitor wells and piezometers, no well may be drilled within 100 feet of a septic tank system or sewage disposal area unless the ADWR director authorizes it in writing.

The Arizona Department of Health Services says high arsenic levels are found throughout Arizona and advises testing for bacteria and nitrates once a year, and for arsenic, fluoride, and uranium every 5 years, at a state-certified lab.

Sources8,1,9,10

Arizona compared with neighboring states

StateMedian depthTypical finished well
Arizona410 ft$15,500–$71,200
California310 ft$14,600–$80,900
Colorado340 ft$10,300–$60,000
Nevada230 ft$9,800–$46,500
New Mexico240 ft$10,400–$42,700
Utahno records$6,800–$42,500

Sources11,3,4,12,13,14,6,15,16,17,18,19,20,21,22,23,24

Common questions

How deep is a typical well in Arizona?

Half of the 7,329 domestic wells reported in Arizona from 2016–2025 are between 280 ft and 600 ft deep, and the median is 410 ft. Your county can sit well above or below that, so check the county table on this page before you compare quotes.

How much does it cost per foot to drill a well in Arizona?

Drilling alone runs $30–$65/ft on the rates we compiled. Spread across a whole finished well, including casing, pump, tank, and hookup, the midpoint estimate works out to about $98/ft at a depth of 410 ft. Per-foot quotes rarely include the pump.

Do you need a permit to drill a well in Arizona?

A notice of intention to drill must be filed with the director of the Arizona Department of Water Resources before an exempt domestic well is drilled or an existing well is deepened, inside or outside an active management area. The notice names the driller and the driller's license number and gives the well's location, depth, casing, and planned use. Expect a fee of $100–$200. The driller usually files the paperwork, but the permit is tied to your property, so ask for a copy.

How much do a well pump and pressure tank add in Arizona?

An installed submersible pump with wire and drop pipe runs $1,500–$3,000, and a pressure tank with its switch runs $500–$1,200. Together they are often the line items missing from a drilling quote, so a quote for the hole alone will look $3,200 cheaper than a finished well.

Related pages

For every state side by side and the national range, see costtodrillawell.com.

Sources

  1. Well Registry (Wells 55) , Arizona Department of Water Resources. Accessed November 8, 2026. Well completion records used for depth, casing, and yield distributions.
  2. Understanding the Cost of Installing a Well in Mohave County , A-1 Arthur's Well Service (Kingman, AZ). Accessed November 8, 2026. Undated. Drilling $30-$65/ft; submersible pump $1,500-$3,000+; pressure tank $500-$1,200+; electrical and controls $500-$2,000; plumbing and trenching $1,000-$5,000+; total $10,000-$30,000+.
  3. Cost to Drill a Water Well in Northern California , Weeks Drilling & Pump Co. (Sebastopol, CA). Accessed November 8, 2026. Published 2026-04-30. Drilling $35-$130/ft; steel casing $20-$45/ft; pump and pressure tank $3,500-$9,000; permitting $500-$2,500.
  4. D-203(5) Statewide Drilling Services, Exhibit D Price Schedule (Thein Well Co., contract 226711) , Minnesota Office of State Procurement. Accessed November 8, 2026. 2023 state-contract unit rates from a licensed MN driller: 6-in borehole $30-$31/ft (mud rotary/auger), $75/ft air rotary in rock; 6-in casing $28/ft (code) to $48/ft (black steel); mobilization $1,000/project; 34-gal pressure tank installed $1,000, 62-gal $1,450; submersible pump 3/4-1 hp $1,250-$1,350 each; drop pipe $7/ft; pitless and lateral $2,000; trench $20/LF. Agency-buyer rates, not retail quotes.
  5. A.R.S. 45-596 Notice of intention to drill , Arizona State Legislature. Accessed November 8, 2026. Filing fee $150; $100 for a well outside an AMA or INA used solely for domestic purposes with a pump of 35 gpm or less. Confirmed by A.A.C. R12-15-104 (effective 2023-10-13, https://www.law.cornell.edu/regulations/arizona/Ariz-Admin-Code-SS-R12-15-104) and ADWR form DWR 55-40.
  6. DSHS Austin Laboratory Fee Schedule, effective 2026-09-01 , Texas Department of State Health Services. Accessed November 8, 2026. Potable Water (coliform) MZZ0441A $18.39; Nitrate-N EZZ0048A $30.00; Routine Water Mineral Group $155; All Metals $165; VOCs $150.
  7. A.R.S. 45-600, Filing of report by driller; filing of completion report , Arizona Legislature. Accessed November 9, 2026.
  8. Ground Water Atlas of the United States, Segment 2: Arizona, Colorado, New Mexico, Utah (HA 730-C) , U.S. Geological Survey. Accessed November 9, 2026.
  9. Ariz. Admin. Code R12-15-818, Well Location , Arizona Department of Water Resources. Accessed November 9, 2026.
  10. Protect Your Health: a guide for private well owners in Arizona , Arizona Department of Health Services. Accessed November 8, 2026. Undated. Private well water is not tested by any government organization; owners use ADHS-certified private labs. No fee figure.
  11. Well Completion Reports (Online System for Well Completion Reports, OSWCR) , California Department of Water Resources. Accessed November 8, 2026. Statewide well completion report dataset used for depth records.
  12. Environmental Health Fee Schedule, effective 2026-08-08 , Calaveras County Environmental Management Agency (CA). Accessed November 8, 2026. 8607 Well Permit Application $693.00 per well.
  13. How Much Does a Well Pressure Tank Cost? , Mid Atlantic Water LLC (water-system supplier, nationwide). Accessed November 8, 2026. Updated 2026-10-14; prices live as of 2026-09. Tank replaced by plumber $800-$1,800 all-in (20-44 gal); labor $200-$500; submersible pump job $1,000-$2,500; tank plus pump $2,500-$5,000+. Supplier, not an installer.
  14. What Are the Cost Factors of Drilling a Santa Fe Water Well? , Boylan Water Well Service (Santa Fe, NM). Accessed November 8, 2026. Published 2026-06-25. Drilling incl. PVC casing $28-$65/ft; submersible pump $850-$2,500; casing and grouting $1,500-$4,000; pressure tank and controls $500-$1,800; electrical hookup and trenching $1,000-$3,500; permits and lab testing $300-$1,000; turn-key $12,000-$30,000+.
  15. DWR Well Application Permit , Colorado Division of Water Resources. Accessed November 8, 2026. Well completion records used for depth, casing, and yield distributions.
  16. Water Well Installation: Complete Guide, Cost and Tips for Success , Stevens Drilling (La Vernia, TX). Accessed November 8, 2026. Published 2025-10-27. Drilling $25-$65/ft; pumps $500-$2,000; pressure tank $300-$1,500; permit/licensing $100-$750; total $7,500-$17,000+.
  17. C.R.S. 37-92-602 Exemptions; presumptions; legislative declaration (current through Fall 2025) , Colorado Revised Statutes via colorado.public.law. Accessed November 8, 2026. Fee of $100 for a new exempt household well permit application; $60 for a replacement/paragraph (c) application.
  18. Water Testing , El Paso County Public Health Laboratory (CO). Accessed November 8, 2026. 2026. Total coliform/E. coli P/A $23.00; nitrate-N $30.00; real estate package $80.00.
  19. Well Driller Reports , Nevada Division of Water Resources. Accessed November 8, 2026. Well completion records used for depth, casing, and yield distributions.
  20. Compilation of fetched state and county well permit fees (research/rates/NOTES.md, section permit) , costtodrillawell.com research. Accessed November 8, 2026. Internal compilation used only for the national permit fallback. Component sources: ok-owrb-well-driller-fact-sheet ($0), fl-nwfwmd-well-fees through fl-manatee-water-wells-2026 ($35-$265), ny-dutchess-dbch-fees ($45), wi-dnr-well-notification ($50.50), ga-pierce-well-permit-2024 ($70), idaho-code-42-235 ($75), crs-37-92-602 ($100), az-ars-45-596 ($100-$150), nmac-19-27-5 ($125), wa-rcw-18-104-055 ($200), nc-wayne-private-wells through nc-gaston-eh-fees ($225-$450), mi-grand-traverse-fees-2026 and mi-delta-menominee-fees-2025 ($240-$334), mt-dnrc-form-613-2025 ($250-$400), pa-chester-county-health-fees ($300), mn-stat-103i-208 ($325), oh-logan-fees-2024 through oh-summit-fees-2025 ($350-$594), or-hb2808-2025 ($490), blanco-pedernales-gcd-fees-2025 ($500), ca-calaveras-fees-2026 ($693), ny-nyc-well-water-permit ($1,090 outlier).
  21. Points of Diversion (wells) , New Mexico Office of the State Engineer. Accessed November 8, 2026. Well completion records used for depth, casing, and yield distributions.
  22. 19.27.5 NMAC Water Rights Filing Fees, section 19.27.5.8 , New Mexico Office of the State Engineer (via NM State Records Center and Archives). Accessed November 8, 2026. Effective 2006-08-15. $125 for an application for a 72-12-1.1 domestic well permit; $75 to repair or deepen.
  23. National depth distribution, median of state percentiles , Cost to Drill a Well. Accessed November 9, 2026. Median across states with records of each state's 25th, 50th, and 75th percentile depth.
  24. Default casing share of well depth , Cost to Drill a Well. Accessed November 9, 2026. Median of state casing_p50 / depth_p50 across states that report casing. Used only where no local casing median exists.

How these figures are built: methodology. Updated November 2026.