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Data Center Registry

Prologis Project Mila

Trenton, Butler County, Ohio · All 9 Prologis sites

PermittedContestedAI likelyRecord updated August 16, 2026

Prologis Project Mila is a permitted data center in Trenton, Ohio (Butler County), operated by Prologis. The public record puts it at announced October 2025, 250 MW planned, 141 acres, a reported $233 million investment. It is the subject of active public debate, with hearings, petitions, or organized opposition on record.

Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.

Facility record

Permitted

Operator
Prologis
Facility type
Data center, AI use likely
Location
Trenton, Butler County, OH
Coordinates
39.4800, -84.4638
Power capacity
250 MW planned
Land
141 acres
Investment
$233 million
Announced
October 2025
Utility
Duke Energy Ohio
Power source
Grid
Cooling
Not established from a public source
Water use
Not established from a public source
Jobs
120 permanent
Public subsidy
Community Reinvestment Area (CRA), 15-year, 75% property-tax abatement on data-center building value, Trenton, OH (Butler County), 2026
Community reception
Contested
Source confidence
Confirmed by multiple independent sources or official documentation

Timeline from the record

Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.

  1. March 2026
    Permitted
    Trenton planning commission unanimously approved Prologis 'Project Mila' (4 × 220k sq ft buildings + on-site substation) in March 2026; construction from fall 2026 Source: Data Center Dynamics

Opposition and litigation at this site

Yes. Prologis Project Mila in Trenton, Butler County, Ohio is contested. Hearings, public comment, petitions, or organized opposition are on record, and no lawsuit has been filed so far. Trenton Planning Commission approved the site plan in a ~10-minute meeting (Mar 30, 2026) taking no public questions despite ~30 residents expecting a hearing; a 500+-member opposition group (W.A.T.E.R.) is petitioning for a Butler County charter amendment to ban data centers over 25MW.

How the community has taken it

Reception is a sourced signal, not an editorial judgment: contested means active public debate is on record, with hearings, petitions, or organized opposition, without litigation.

Trenton Planning Commission approved the site plan in a ~10-minute meeting (Mar 30, 2026) taking no public questions despite ~30 residents expecting a hearing; a 500+-member opposition group (W.A.T.E.R.) is petitioning for a Butler County charter amendment to ban data centers over 25MW.

Source

Public money on the record

ProgramAmountGranted byYear
Community Reinvestment Area (CRA), 15-year, 75% property-tax abatement on data-center building valueNot establishedTrenton, OH (Butler County)2026

Notes on the record

Project Mila in Trenton, Butler County (outside Cincinnati): four 220,000 sq ft single-story buildings (880k sq ft total) plus an on-site substation. Planning approved March 2026; construction from fall 2026. Estimated ~100-200 MW (not officially disclosed, omitted from capacity). Distinct from Prologis's Newnan, GA campus. Coordinates are the Trenton area centroid.

What the record does not establish, and the document that would

In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.

  • Cooling method and water use
Which document closes each gap
Cooling method and water use
The water service agreement, any groundwater appropriation permit, and the mechanical narrative in the site plan.

Have one of these documents? Send it to us and we will add it to the record with attribution.

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

Questions people ask about this site

Is there opposition to the Prologis Project Mila data center in Trenton?

Yes. Prologis Project Mila in Trenton, Butler County, Ohio is contested. Hearings, public comment, petitions, or organized opposition are on record, and no lawsuit has been filed so far. Trenton Planning Commission approved the site plan in a ~10-minute meeting (Mar 30, 2026) taking no public questions despite ~30 residents expecting a hearing; a 500+-member opposition group (W.A.T.E.R.) is petitioning for a Butler County charter amendment to ban data centers over 25MW.

Has anyone filed a lawsuit over the Prologis Project Mila data center?

No lawsuit over Prologis Project Mila appears in the record we track as of August 16, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.

How much water does Prologis Project Mila use?

No water withdrawal figure for Prologis Project Mila is on record here. Water use is rarely published voluntarily; it usually surfaces through a utility service agreement or a state withdrawal permit, both of which are public records. We leave the number blank rather than estimate one.

Who operates Prologis Project Mila, and how big is it?

Prologis is the operator on record. We hold 9 sites for that company across the registry. Capacity on record is 250 MW. The site is recorded at 141 acres.

How to cite this page

SueDataCenters.org Data Center Registry, "Prologis Project Mila," updated August 16, 2026, https://suedatacenters.org/data-centers/prologis-mila-trenton-oh.

Facility data from Compute Atlas (E. Kubiak), version 1.32.0 (September 7, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/prologis-mila-trenton-oh, retrieved September 14, 2026.

Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.

Sources for this record

As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.

  1. 1.Prologis details plans for data center campus outside Cincinnati, Ohio · Data Center Dynamics · retrieved July 7, 2026
  2. 2.HIFLD Electric Retail Service Territories (ORNL/DOE-CESER, 2023-08 vintage) · Oak Ridge National Laboratory (ORNL) / HIFLD · retrieved July 23, 2026
  3. 3.Journal-News, "What to know about Trenton's proposed data center tax incentives" · retrieved July 25, 2026
  4. 4.WCPO, "Trenton Planning Commission approves data center site plan in 10-minute meeting" · retrieved July 25, 2026
  5. 5.Stop Ohio Data Centers, Butler County / Project Mila tracker · retrieved July 25, 2026
  6. 6.WYSO, "Trenton approves 15-year tax abatement for data center" · retrieved July 25, 2026
  7. 7.Journal-News, "What to know about Trenton's proposed data center tax incentives" · retrieved August 16, 2026

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