Data Center Registry
Microsoft El Mirage Data Center Campus
El Mirage, Maricopa County, Arizona · All 45 Microsoft sites · Every Microsoft case on our tracker
Microsoft El Mirage Data Center Campus is an operating data center in El Mirage, Arizona (Maricopa County), operated by Microsoft. The public record puts it at announced October 2024, 433 acres, a reported $258 million investment. It has documented public support and no documented opposition.
Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.
Facility record
Operating
- Operator
- Microsoft
- Facility type
- Data center, AI use likely
- Location
- El Mirage, Maricopa County, AZ
- Coordinates
- 33.5695, -112.3204
- Power capacity
- Not established from a public source
- Land
- 433 acres
- Investment
- $258 million
- Announced
- October 2024
- Utility
- Arizona Public Service (APS)
- Power source
- Grid
- Cooling
- Hybrid
- Water use
- Not established from a public source
- Jobs
- Not established from a public source
- Public subsidy
- Not established from a public source
- Community reception
- Supported
- Source confidence
- Confirmed by multiple independent sources or official documentation
Timeline from the record
Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.
- August 2026OperatingMicrosoft's own Greater Phoenix community page describes El Mirage as an operating datacenter ("Microsoft operates datacenters in El Mirage and Goodyear"); the source does not disclose an in-service date, so this event is dated to confirmation. Source: Microsoft
- December 2024Under constructionFifth data center building (PHX-83, 245,500 sq ft, 5 data halls) received planning approval at El Mirage City Council December 2024 Source: AZBEX
- October 2024ProposedMicrosoft purchased 283 acres in two cash transactions totaling $258M near Dysart Rd and Northern Pkwy (LogistiCenter at Copperwing); adds to 150 existing acres Source: Arizona Technology Council
Opposition and litigation at this site
Not that we can document. Local officials or residents have expressed public support for Microsoft El Mirage Data Center Campus in El Mirage, Maricopa County, Arizona, and no opposition, petition, or lawsuit appears in the sources this registry tracks as of August 8, 2026. El Mirage Planning & Zoning recommended the PHX-83 expansion 4-0 and the City Council approved the site-plan amendment (2024); Microsoft's Datacenter Community Pledge commits to not raising residents' electricity prices, replenishing more water than it uses, local jobs, and tax base.
How the community has taken it
Reception is a sourced signal, not an editorial judgment: supported means local officials or residents have expressed public support and no opposition is documented.
El Mirage Planning & Zoning recommended the PHX-83 expansion 4-0 and the City Council approved the site-plan amendment (2024); Microsoft's Datacenter Community Pledge commits to not raising residents' electricity prices, replenishing more water than it uses, local jobs, and tax base. Luke AFB flagged a bird-strike mitigation note on cooling ponds. No organized opposition found.
Power and water
On-site APS substation serves existing campus; power extended to new buildings
Microsoft's Arizona datacenters use adiabatic cooling - zero water for cooling more than half the year (outside air below 85F), switching to evaporative ('swamp-cooler'-style) above 85F; Microsoft and Gila River Water Storage replenish Phoenix-AMA groundwater with long-term storage credits dedicated to El Mirage and Goodyear. No El Mirage-specific water-use (MGD) figure is published.
Notes on the record
investmentUsd is land-purchase cost only; total campus investment is higher. PHX-83 is the fifth building on existing El Mirage campus. Coordinates are El Mirage city centroid; site is at SE corner of Dysart Rd and Olive Ave. Arizona's Sec. 41-1519 sales/use-tax exemption applies by statute but no campus-specific certified award was found; published job figures cover the combined West Valley (El Mirage/Goodyear) campus, not El Mirage alone.
What the record does not establish, and the document that would
In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.
- Power capacity in megawatts
- Tax abatements or other public subsidy
- Permanent jobs promised
Which document closes each gap
- Power capacity in megawatts
- The utility's large load service agreement, the interconnection request in the grid operator's queue, or the electrical site plan in the permit file.
- Tax abatements or other public subsidy
- The abatement, PILOT, or development agreement approved by the county, city, or development authority, and the state's data center sales tax exemption certificate if one was issued.
- Permanent jobs promised
- The economic development application or incentive agreement, which usually states a job commitment and a clawback.
Have one of these documents? Send it to us and we will add it to the record with attribution.
Other sites within 30 miles
Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.
- Project Baccara · Takanock, LLC3 mi · Permitted · 700 MW · Contested
- Aligned PHX-13 · Glendale · Aligned Data Centers8 mi · Under construction · 72 MW · Supported
- Vantage Phoenix Campus (Goodyear, AZ) · Goodyear · Vantage Data Centers9 mi · Operating · 176 MW
- Avondale Campus · Avondale · Prime Data Centers9 mi · Under construction · 240 MW · Supported
- Compass Datacenters Goodyear Campus · Goodyear · Compass Datacenters10 mi · Operating · 350 MW
- Microsoft Goodyear Data Center Campus · Goodyear · Microsoft10 mi · Operating
- QTS Phoenix 4 · Tolleson · QTS Data Centers10 mi · Under construction
- Stream Data Centers PHXA (Phoenix I-VII, Goodyear Campus) · Goodyear · Stream Data Centers11 mi · Operating · 280 MW
Questions people ask about this site
Is there opposition to the Microsoft El Mirage Data Center Campus in El Mirage?
Not that we can document. Local officials or residents have expressed public support for Microsoft El Mirage Data Center Campus in El Mirage, Maricopa County, Arizona, and no opposition, petition, or lawsuit appears in the sources this registry tracks as of August 8, 2026. El Mirage Planning & Zoning recommended the PHX-83 expansion 4-0 and the City Council approved the site-plan amendment (2024); Microsoft's Datacenter Community Pledge commits to not raising residents' electricity prices, replenishing more water than it uses, local jobs, and tax base.
Has anyone filed a lawsuit over the Microsoft El Mirage Data Center Campus?
No lawsuit over Microsoft El Mirage Data Center Campus appears in the record we track as of August 8, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.
How much water does Microsoft El Mirage Data Center Campus use?
No water withdrawal figure for Microsoft El Mirage Data Center Campus is on record here. Cooling is recorded as hybrid, which is the strongest available clue: closed loop and air cooled plant draw far less than evaporative cooling. We leave the number blank rather than estimate one.
Who operates Microsoft El Mirage Data Center Campus, and how big is it?
Microsoft is the operator on record. We hold 45 sites for that company across the registry. No capacity figure is on record for this site. The site is recorded at 433 acres.
How to cite this page
SueDataCenters.org Data Center Registry, "Microsoft El Mirage Data Center Campus," updated August 8, 2026, https://suedatacenters.org/data-centers/microsoft-el-mirage-az.
Facility data from Compute Atlas (E. Kubiak), version 1.32.0 (September 7, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/microsoft-el-mirage-az, retrieved September 14, 2026.
Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.
Sources for this record
As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.
- 1.Microsoft Data Center Planned in El Mirage, PHX-83 fifth building · AZBEX · retrieved July 6, 2026
- 2.Microsoft acquires nearly 300 acres for data center growth in El Mirage · Arizona Technology Council · retrieved July 6, 2026
- 3.Microsoft files to expand El Mirage data center campus in Arizona · Data Center Dynamics · retrieved July 7, 2026
- 4.Microsoft, Greater Phoenix, Arizona datacenter community · Microsoft · retrieved August 8, 2026
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