Microsoft El Mirage (Copperwing)
El Mirage, Maricopa County County, AZ
Source: Primary source
Microsoft El Mirage (Copperwing) is a under construction data center in Maricopa County County, AZ, operated by Microsoft Data Center LLC.
Reporting by Eric Keller · Updated Jun 18, 2026
Overview
source: link283 acres ($258M); 3 buildings 750k sqft approved May 2024.
Operator chain
- Files asMicrosoft Data Center LLC
- This facilityMicrosoft El Mirage (Copperwing)
Grid & water — why here
source: HIFLD · EPAThe closest existing grid infrastructure and the municipal water system this location sits in — the same constraints the buildout model screens on (it won't site a campus more than ~2 km from a substation or ~5 km from municipal water). Distances are straight-line to public HIFLD/EPA features, not a metered connection.
In the news
source: Google News- News | Microsoft scoops up 100 acres to expand Phoenix data center holdingsCoStar· Jun 8, 2026
- Microsoft spends $130M on Goodyear land to expand West Valley data center footprintThe Business Journals· Jun 4, 2026
- Why Arizona Is Becoming a Hub for Digital Platforms and Online Servicesgilbertsunnews.com· May 8, 2026
- Microsoft plants data center flag in West Valley. See whereazcentral.com and The Arizona Republic· Feb 2, 2026
- Microsoft pours billions into data center real estate nationwide, including ArizonaThe Business Journals· Aug 11, 2025
- As drought deepens, big tech has put nearly half of its data centers in water-scarce regionsBusiness Insider· Jun 24, 2025
Data-center discussions in Maricopa County County
source: LocalView (CC0)Local-government meetings in this county that discussed data centers, each cued to the moment. From the public LocalView corpus of government meetings on YouTube — a county-level signal, not necessarily about this specific site.
Tax breaks & subsidies
source: Good Jobs First / GASB 77No per-deal tax break is linked to this site yet. No state discloses the recipient of a data-center abatement at the facility level, so per-site deals are rare in the public record. If you have a development agreement or board resolution for this site, send it to us.
Arizona reported $38.5M in Computer Data Center TPT/Use Tax Exemption (Deduction Code 565; A.R.S. § 41-1519) for FY2025 (Arizona Department of Revenue, Office of Economic Research and Analysis). Program-wide, not attributable to this site.
Water use
No public record of this facility's water use. We check state withdrawal reporting for self-supplied sites; municipally supplied sites only become visible through a public-records request to the local water utility — a per-facility request tool is coming. If you have a utility document for this site, send it to us.
EPA permits & violations
source: EPA ECHONo reported violations as of last sync.
Nearest school
source: HIFLD / NCESThe nearest public school, El Mirage Elementary School in El Mirage, is 0.5 mi from this site (764 students). 3 public schools sit within a mile of the site.
Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).
Hearings timeline
No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.