Maricopa County, Arizona, adopted a data-center zoning exclusion on December 10, 2025. Its status in this snapshot is enacted.
The record reads: "The Maricopa County, Arizona, Board of Supervisors unanimously approved a modernized zoning ordinance establishing specific rules for data center development, effective January 9, 2026. The new rules limit data centers to two industrial… (datacentertracker.org)."
Details
| Action | Class | Status | Date | MW threshold | Scope | Source |
|---|---|---|---|---|---|---|
| Zoning exclusion | restriction | enacted | December 10, 2025 | county-wide | datacentertracker.org |
Jurisdiction type: county. County: Maricopa County. Dataset: datacentertracker. Snapshot August 15, 2026; documented actions, not a census.
Elsewhere in Maricopa County
- Goodyear: zoning exclusion, enacted, July 6, 2026
- Maricopa County Board of Supervisors: zoning exclusion, enacted, May 6, 2026
- Mesa: zoning exclusion, enacted, July 8, 2025
- Mesa: zoning exclusion, pending, May 18, 2026
- Surprise: zoning exclusion, enacted, May 6, 2026
- Tonopah: zoning exclusion, enacted, April 15, 2026
Arizona context
Arizona has 10 documented local actions across 9 jurisdictions in this snapshot. At the state level, the state has an incentive rollback (in force, July 1, 2026).
A town that says no to a data center gives up local tax revenue, not jobs: one large campus pays $2M to $90M a year depending on the tax regime, against roughly 50 permanent jobs. The parent piece prices it and lists the conditions that beat a ban.