Amazon data center campus south of Trenton (Madison and St. Clair townships)
Amazon wants to build 18 data center buildings on 601 acres of farmland south of Trenton. The land would need to be annexed into the city. Both townships said no, and the county commissioners will make the final call.
Where things stand: Township trustees rejected the plan to annex the land into Trenton in August 2026. Butler County commissioners still have to decide on the annexation.
🕒 Latest update (Aug 27, 2026): St. Clair and Madison township leaders rejected the petition to annex the land into Trenton.
What we know
- 📍 WhereBetween Wayne Madison Road and Hawkins Road, toward Augspurger Road and the Great Miami River; land is in both Madison and St. Clair townships, Madison, Butler County
- 🏢 CompanyAmazon Web Services
- 👤 Built forAmazon
- 🌳 Size601 acres
- 🔌 Where the power comes fromNext to Duke Energy power lines and Duke's Madison gas power plant.
- 💵 Cost$5 billion
- 💸 Tax breaksAmazon offered each township $5 million plus property taxes.
❓ Still unanswered
Nobody has answered these in public yet. Can you help find out?
- When will Butler County commissioners hold the annexation hearing? 🙋 I'll find out
- Will the planned Trenton voter ban on data centers apply here if the land is annexed? 🙋 I'll find out
- How much power and water would the campus use? 🙋 I'll find out
What happened so far
- Aug 12, 2026News reports said Amazon is negotiating an 18-building, $5 billion campus on 601 acres south of Trenton.
- Aug 27, 2026St. Clair and Madison township leaders rejected the petition to annex the land into Trenton.
Local votes and rules
⏸️ Pause on new data centers
Butler County commissioners passed a six-month pause (moratorium) on new data centers in six townships where the county controls zoning, including Madison Township. It is set to end in December 2026.
Drag the slider to compare the land before and now.
Where this comes from
- Amazon eyes Greater Cincinnati suburb for $5B data center · WKRC Local 12 · Aug 12, 2026
- Leaders turn down millions, reject annexation plan for Amazon data center · Spectrum News 1 · Aug 27, 2026
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