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Updated twice daily · Oct 10, 2026

Infrastructure

Arizona data centers

This page tracks every Arizona data center Arizona AI can verify from published sources: what is operating today, what has only been announced, and which operator is behind each site.

Why data centers are an AI story

Artificial intelligence is usually described as though it were weightless. It is not. It is a physical industry with four links in its chain, and Arizona holds two of them. Select any stage to read what happens there.

Data centers · The subject of this page

A data center is a building full of computers that run continuously on behalf of other people and companies. AI leans on them heavily: models are trained in buildings like these, and much of what people ask AI services is answered in them too, rather than on the phone or laptop in front of them. What makes them hard to site is electricity, cooling and fiber at the scale that work demands.

Copper marks the stages Arizona holds. Here is the part that is hard to picture: the 2.2 GW running today across 49 Arizona facilities is electrical demand on the scale of a large city, drawn continuously, in a desert, by buildings that mostly employ a few dozen people each once they are finished. That combination is why data centers show up in arguments about water, power bills and land use, and why a site about Arizona and AI has to count them carefully rather than cheer for them.

Overview

Built and operating today

Operating capacity

2.2 GW

Built facilities only. Added up from the 47 of 49 that have a power figure. Where the figures come from: 14 from operators, 5 from the press and 28 estimates from a listing site. What they measure: 684 MW computing (IT) load and 1.6 GW not stated by the source.

Operating floor area

10.1M sq ft

Built facilities only. Added up from the 34 of 49 that publish a floor area.

Facilities in operation

49

Buildings and campuses running now. A campus and its own phases count once.

Announced but not yet built

Announced capacity

10.4 GW

Proposed projects only. Added up from the 37 of 58 that have a power figure. Where the figures come from: 7 from operators, 1 from an official record, 12 from the press and 17 estimates from a listing site. What they measure: 1.7 GW computing (IT) load, 2.1 GW power utilities have agreed to supply, 1.5 GW expected electricity demand and 5.1 GW not stated by the source.

Planned floor area

43.6M sq ft

Proposed projects only. Added up from the 26 of 58 that publish a floor area.

Projects proposed

58

Announced, permitted or under construction. None of this is running yet.

The two rows are never added together. An announced project is not power Arizona has, and announced projects do change scope or fail to proceed. Arizona AI tracks 129 published records in total; 107 of them carry a figure into the numbers above, 11 describe part of a campus that is already counted at campus level, 4 are campus overviews whose buildings are counted individually, 2 are projects no longer proceeding, and 5 have no recent public information.

Announced figures are estimates based on what developers and operators have stated in their plans, filings and announcements. Many describe a full build-out years away, and all are subject to change.

No longer proceeding

These projects were announced and then stopped. They are not counted in either total above.

Previously reported, no recent information

These projects were announced or reported at some point, but we found no recent public information about them. Some may have been abandoned or put on hold. They are not counted in either total above, and each page says when the latest information is from.

The largest and the newest

Built and operating today

Largest operating facility

Running now, by megawatts

  1. 1QTS Phoenix 2 (PHX2) Campus210 MW for the whole campus
  2. 2CyrusOne Chandler Campus (PHX1-PHX8)169 MW for the whole campus
  3. 3Google Mesa Building 1138 MW
  4. 4Aligned Phoenix PHX-0792 MW
  5. 5Aligned Phoenix PHX-01/02/0362 MW for one phase

Largest operating floor area

Running now, where square footage is reported

  1. 1Apple Mesa Global Data Command Center1.3M sq ft
  2. 2Iron Mountain AZP-1588,669 sq ft
  3. 3Aligned Phoenix PHX-01/02/03550,000 sq ft
  4. 4Iron Mountain AZP-2530,000 sq ft
  5. 5Digital Realty PHX15508,000 sq ft

Most recently online

Running now, by year completed

  1. 1Edged Phoenix2026
  2. 2Microsoft PHX-722026
  3. 3Microsoft PHX-822026
  4. 4Aligned Phoenix PHX-06 Phase 12025
  5. 5Aligned Phoenix PHX-072025

Announced but not yet built

Largest proposed project

Announced, by megawatts. None of this is running.

  1. 1Tract Buckeye1.8 GW utility supply at full build-out
  2. 2Luckett Road Data Center Campus (Marana)1.5 GW expected demand at full build-out
  3. 3Entrata Data Center (Mohave County)1.3 GW at full build-out
  4. 4Hassayampa Ranch Data Center1.0 GW at full build-out
  5. 5QTS Phoenix 3 Campus750 MW at full build-out

Largest proposed floor area

Announced, where square footage is reported

  1. 1Tract Buckeye20.0M sq ft
  2. 2QTS Phoenix 3 Campus3.0M sq ft
  3. 3NTT Mesa PH10 (Pacific Proving site)2.3M sq ft
  4. 4491st Avenue and Thomas Road Data Center Site (Tonopah)2.3M sq ft
  5. 5Project Baccara2.0M sq ft

Largest proposed site

Announced, by land assembled

  1. 1Tract Buckeye2,069 acres
  2. 2Hassayampa Ranch Data Center2,000 acres
  3. 3Entrata Data Center (Mohave County)776 acres
  4. 4491st Avenue and Thomas Road Data Center Site (Tonopah)638 acres
  5. 5Luckett Road Data Center Campus (Marana)600 acres

Who holds the most, company by company

The lists above rank single facilities. This adds up every facility one company holds in Arizona, which is how an operator with several medium sites can outrank one with a single large site. Ordered by capacity that is operating today. Announced capacity is shown alongside it and is never added to it. Companies that have announced a project but run nothing in Arizona yet sort below the ones that do; expand the table to reach them.

OperatorOperating sitesOperating capacityProposed sitesAnnounced capacity
Microsoft11627 MW5285 MW
Aligned5285 MW6343 MW
QTS1210 MW2750 MW
CyrusOne1169 MW1198 MW
Vantage Data Centers4141 MW142 MW
Google1138 MW2276 MW
NTT3137 MW436 MW
Iron Mountain4131 MW--
Meta296 MW3144 MW
Digital Realty266 MW--

A dash means nothing is publicly established, not zero. Showing 10 of 32 operators.

Every tracked facility

129 of 129 facilities

Listed A to Z. Use the sort control above to reorder by capacity or floor area.

Aligned

Proposed

Aligned Peoria Campus

75th Avenue and Butler Drive, Peoria

Floor area
916,000 sq ft
Land
95 acres

Aligned

Operating

Aligned Phoenix - Building C1

Phoenix

Capacity
16 MW

Part of a larger campus record. Its capacity is counted once, at campus level, not twice.

Aligned

Operating

Aligned Phoenix PHX-04

2501 S Price Rd, Chandler

Capacity for one phase
56 MW
Floor area
396,343 sq ft

Amazon Web Services

No recent information

AWS Laveen Data Center

Near Loop 202 and Dobbins Road, Phoenix

Land
220 acres
Owner-occupied

Comarch

Operating

Comarch Mesa Data Center

3223 S Ellsworth Rd, Mesa

Capacity
2 MW
Floor area
32,000 sq ft
Land
3 acres
Colocation

Centersquare

Operating

Csquare PHX1

615 N 48th St, Phoenix

Capacity
13 MW

Part of a larger campus record. Its capacity is counted once, at campus level, not twice.

Centersquare

Operating

Csquare PHX3

1301 W University Dr, Mesa

Capacity
8 MW
Floor area
154,158 sq ft

Showing 30. 99 more, or narrow the list with the filters above.

How this list is built

Records come from operator announcements, county and municipal filings, utility and regulatory filings, trade press and public project trackers. Every record was checked one by one against those sources in October 2026, and a second reviewer reopened every source. Arizona AI is independent and is not affiliated with any operator or with the State of Arizona.

Proposed projects are shown because they are the clearest signal of where Arizona is heading, but an announcement is not a building. They are labeled, kept out of operating totals, and reviewed periodically. A project that is publicly stopped, for example by a county denial, stays listed under No longer proceeding with the date and reason, and is taken out of every total. A project we found no recent public information about stays listed too, under its own heading, with the date of the latest information, and is likewise taken out of every total.

Some operators publish a campus figure and a per-building figure for the same site. Where that happens the capacity is counted once, at one level only, so the totals on this page are lower than the sum of every record shown. Where only per-building figures exist, each building is counted and the campus page is an overview. 15 of 129 published records are excluded from the totals for this reason.

Blank fields mean the figure is not publicly established, not that it is zero. On-site headcount is not shown at all: construction-job announcements are not permanent employment, and no reliable per-facility employment figures exist for these sites. Tenant lists are not shown for the same reason.

Capacity figures come from the operator wherever the operator publishes one. Where it does not, the figure comes from the best other public source, often a data center listing site, and each facility page says which. Listing-site figures often run 20 to 40 percent above what operators state for the same buildings where both exist, and the listing does not say what its numbers measure. The totals above therefore combine figures from operators, official records, the press and listing-site estimates, and some figures measure a utility's supply agreement or expected electricity demand rather than computing load. The note under each total says how many figures come from each kind of source and how much of the total each measure accounts for.

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