Amazon · Datacenter Dynamics
Amazon gears up 18-building campus outside Cincinnati, Ohio
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Amazon Web Services (AWS) is planning another data center campus in Ohio.
Key facts
- In late 2024, AWS said it would invest $23 billion in Ohio by 2030
- This year so far has seen AWS get approval for another campus in Ohio, located in Marysville, and in October 2025, AWS secured a tax break for a $3bn data center in Sidney, Ohio
- Amazon is reportedly aiming to develop 18 buildings, each totaling around 220,000 sq ft (20,440 sqm), for a total of 3.96 million sq ft (367,895 sqm)
- The city of Trenton acquired its share of the site, a 164-acre farmstead in Madison Township, in October 2025
Summary
As reported by Local12 and BizJournal, Amazon is eyeing a 601-acre site outside Cincinnati, in Madison Township and St. Clair Township, in Butler County, south of the city of Trenton. The largely undeveloped land sits along Wayne Madison Road and Hawkins Road, near Augspurger Road and the Great Miami River. Amazon is reportedly aiming to develop 18 buildings, each totaling around 220,000 sq ft (20,440 sqm), for a total of 3.96 million sq ft (367,895 sqm). The site is close to a Duke Energy substation and the utility’s 692MW gas-powered Madison Power plant.