Who owns CyrusOne Cincinnati-Hamilton CIN4?

CyrusOne Cincinnati-Hamilton CIN4 is owned and operated by CyrusOne LLC.

Has CyrusOne Cincinnati-Hamilton CIN4 had environmental violations?

As of the latest EPA ECHO sync, no enforcement actions are on record for CyrusOne Cincinnati-Hamilton CIN4.

Where is CyrusOne Cincinnati-Hamilton CIN4 located?

CyrusOne Cincinnati-Hamilton CIN4 is in Butler County, OH.

Operatingcolocation

CyrusOne Cincinnati-Hamilton CIN4

Q: What do data center tax breaks cost in Ohio?

Ohio reported $130.4M in Sales/use tax exemption for qualified property used in an eligible computer data center (R.C. § 122.175) for FY2024 (Ohio Department of Taxation / Office of Budget and Management). That is a statewide program figure, not attributable to one site.

Butler County, OH

Source: OpenStreetMap

CyrusOne Cincinnati-Hamilton CIN4 is an operating data center in Butler County, OH, operated by CyrusOne LLC. DataCentersExposed has documented a 1,543,625 sq ft footprint at this site.

Reporting by Eric Keller · Updated Jun 14, 2026

Report a concern at this facility Watch this facility (email alerts)

Est. capacity

~300-625 MW

Footprint

1,543,625 sq ft

Utility

City of Hamilton

Grid

PJM

Attribution & capacity confidence:mediumprimary source

Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

Overview

source: link

CyrusOne CIN4 is an operating colocation data center in Butler County, Ohio, run by CyrusOne LLC. The site spans 1,543,625 square feet, drawing power from the City of Hamilton utility within the PJM grid. It operates as part of CyrusOne's broader data center portfolio.

Operator chain

Ultimate parent
CyrusOne LLC
Files as
CyrusOne LLC
This facility
CyrusOne Cincinnati-Hamilton CIN4

In the news

source: Google News

Tax breaks & subsidies

source: Good Jobs First / GASB 77

These tax breaks are recorded to CyrusOne LLC (the operator/parent) and may cover this or other sites — no state names the recipient at the facility level.

Dollar value not disclosed for these records.

Texas Qualifying Large Data Center Project Exemption$0
State of Texas · granted 2022 · term — yr · source
Texas Qualifying Data Center Exemption$0
State of Texas · granted 2017 · term — yr · source
Texas Qualifying Data Center Exemption$0
State of Texas · granted 2016 · term — yr · source

Statewide cost of this incentive

Ohio reported $130.4M in Sales/use tax exemption for qualified property used in an eligible computer data center (R.C. § 122.175) for FY2024 (Ohio Department of Taxation / Office of Budget and Management). Program-wide, not attributable to this site.

source · All Ohio subsidies →

Water use

Modeled estimate~93.6K gpd

Direct (onsite cooling)

~45.6K gpd

Indirect (its electricity)

~48K gpd

No measured record exists, so this is a low-confidence model from 5 MW (interconnection capacity): 1.8 L/kWh cooling (temperate climate) + 0.5 gal/kWh embedded in PJM grid mix. How we estimate. Have a utility document? Send it and we'll replace this with the real figure.

EPA permits & violations

source: EPA ECHO

No reported violations as of last sync.

What this site costs the grid

source: PJM RPM auction reports

AEP (Ohio / WV / VA) · 2027/28 auction

$333 /MW-day

PJM's capacity auction sets a $/MW-day price that utilities pass on to every household and business in the zone. This site cleared at the PJM-wide (RTO) price, where soaring data-center demand is a documented driver. See the full zone-by-zone breakdown →

This site's capacity-market cost (estimated)

$36.5M to $76M/yr

An estimated ~300 to 625 MW of load at the zone's $333/MW-day, annualized — the capacity charge a load this size carries at the current auction price. Estimated from the building footprint at 200 to 400 W/ft² (the typical range for modern data centers). A rough order-of-magnitude figure, not a metered or permitted capacity.

Separately, a typical home in this zone pays an estimated $4 to $10/mo more on the capacity portion of its bill that PJM's market monitor attributes to data-center demand. See your address's full impact →

Air quality near this site

source: AirNow

PM2.5

Moderate

Good

PM10

Good

Air Quality Index from the nearest AirNow reporting area (Cincinnati), as of 2026-06-10. Regional context — not this facility's own emissions.

Who lives nearby

source: Census ACS 2023

Median household income

$44.6K

People of color

77%

Below poverty

32%

Tract population

3,650

Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.

Nearest school

source: HIFLD / NCES

The nearest public school, Riverview Elementary School in Hamilton, is 0.2 mi from this site (650 students).

Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).

Hearings timeline

No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.