Maricopa County, AZ
Tonopah Data Center Campus (491st Ave and Thomas Rd)
Operator not disclosed. Approved.
Maricopa County's Board of Supervisors approved rezoning for 638 acres near 491st Avenue and Thomas Road outside Tonopah in February 2026, clearing the way for up to nine data center buildings totaling 2.25 million square feet along with on-site solar power generation and battery energy storage.
- Status
- Approved
- Operator
- Not disclosed
- Location
- Near 491st Avenue and Thomas Road, Tonopah, AZ, Maricopa County, AZ (approximate, city center)
- Size
- MW not reported, 638 acres, 2,250,000 sq ft
- Cooling
- Not reported
- Utility
- Arizona Public Service
- First reported
- 2026-02
- Last updated
- August 19, 2026
Sources
- Maricopa County Board Approves Rezoning for 638-Acre Data Center/Solar Site, AZBEX, 2026-02-18
- 2.25 million sq ft data center campus proposed outside Phoenix, Arizona, Data Center Dynamics, 2026-02
What it would mean nearby
Arizona Public Service is asking the commission for a 16.4% residential increase (2025 general rate case (docket E-01345A-25-0105)). On a $160 monthly bill that is about $22 to $30 a month.
For a noise estimate and the three distance rings, check your own address.
Other tracked projects within 25 miles
Is it near you?
Corrections and tips: use the address in the footer. We link every claim to its source.