Arizona

The largest footprint in Arizona belongs to CyrusOne LLC, behind 8 tracked facilities. Microsoft Corporation, QTS Realty Trust, LLC, and Iron Mountain Incorporated round out the most active operators in the state. Many of these sites are filed under shell or project names rather than the parent's — our operator column resolves them back to the real corporate parent wherever the chain is documented.

Geographically, the buildout clusters: Maricopa County leads Arizona with 61 facilities and a composite risk score of 63/100. Pinal County and Cochise County follow. Our county risk score weights project exposure (40%), power demand (30%), water draw (15%), and land footprint (15%); the full breakdown is shown on each county page.

Arizona is not done growing. 2 facilities are in the pipeline — proposed, permitted, or under construction — which is where residents still have a say at zoning hearings and in rate cases. Each pending project is a decision about land, water, electricity prices, and tax revenue that hasn't been finalized.

We also surface the accountability trail: 8 state bills mentioning data centers and 6 recent news items are tracked for Arizona below, pulled from LegiScan and GDELT and refreshed automatically. Legislation is linked to the counties and operators it names; news is classified by community sentiment.