This is a source-attributed discovery row. It can help you find a place and its citations; it is not a DataCenterData finding that the facility is distinct or currently operating.
Reported geography
Source-reported location for AWS Project Cosmos.
Approximate source coordinates; this is not a parcel claim. Nearby source points are combined into one accessible target that opens this exact map scope. View these exact rows on the interactive map →
Source row snapshot
- Operator as published
- Amazon Web Services
- Address and locality
- Marysville · Union County · Ohio
- Official metro area
- Columbus, OH
- Source-reported status
- under construction
- Provider facility type
- data center
- Reported capacity
- Not stated
- Source freshness
- 6 July 2026
- Location precision
- approximate (provider label: exact; the provider's own note describes an approximate location)
- Compute Atlas confidence label
- confirmed (provider's classification; not a DataCenterData check)
- Stable directory ID
dcd-dir-000156
Reported details
Source-reported by Compute Atlas; not independently verified by DataCenterData. Provider wording is kept; long provider notes are shortened and marked …; unknown is not zero; none of these values is totaled, ranked or compared.
- Power supply description
- Grid (city water supply; non-contact cooling with on-site storage)
- Power source
- Grid
- Land area
- 55 acres (source-reported; parcel boundary not established)
- Announced investment
- $1 billion
- Announced jobs
- 50 permanent
- AI-use label (provider)
- mixed use
- Announced
- October 2024
Incentives reported by the source
Whether each incentive was approved, awarded or received is not established.
- 30-year 100% property tax exemption (Community Reinvestment Area) · Marysville, Union County, OH · 2025 Open cited source →
Provider notes
Energy. Non-contact cooling; on-site water storage used during off-peak hours; city water supply only (no on-site wells)
What the source record says
14684 Industrial Parkway, Marysville OH 43040 (Union County, ~30 mi NW of Columbus). Two-building campus totaling ~500,000 sq ft on 55 acres. Also referenced as 'Project Cosmo' (without trailing 's') in DCD. Jobs updated to 50 per Marysville city FAQ ('at least 50 full-time operational jobs'); original record stated 25 from DCD/Amazon initial filing. Construction start updated to early 2026 per city FAQ; DCD had projected August 2025 which appears delayed. Part of AWS's broader $10B+ Ohio infrastructure commitment. Coordinates are approximate Marysville Innovation Park area.
Any MW value is reproduced as source-reported context. Its measurement boundary is not established consistently enough for comparison. Unknown is not zero.
Status history supplied by the source
- 2024-10 · source-reported proposed
AWS files rezoning application for Marysville Innovation Park at 14684 Industrial Parkway
- 2025-03 · source-reported permitted
Marysville City Council approves Community Reinvestment Area agreement; 30-year 100% property tax exemption granted; permit issued March 10, 2025
- 2026-01 · source-reported under construction
City of Marysville FAQ confirms site readiness activities began early 2026 with construction running through 2027; DCD had projected August 2025 construction start from permit approval which appears to have been delayed. Two buildings (~250,000 sq ft each); completion targeted 2027.
Sources and attribution
These sources are listed for the whole row. Unless a figure links to its own source, the provider does not mark which one gave it, so a figure may not appear in every source.
- AWS gets go-ahead for data center campus in Marysville, Ohio · Data Center Dynamics
- Amazon Web Services Press Release - Grow Union County Ohio · Grow Union County Ohio / AWS
- Data Center FAQs - City of Marysville, OH · City of Marysville
Adapted from Compute Atlas by Edward Kubiak, edition 1.34.1, under CC BY 4.0. Upstream ID aws-project-cosmos-marysville-oh. Filtered to data-center records in the 50 U.S. states; selected fields normalized for search and display; DataCenterData directory IDs added. Some locations in this layer are reported by the provider as derived from OpenStreetMap (© OpenStreetMap contributors, ODbL, https://www.openstreetmap.org/copyright) and Epoch AI (CC BY 4.0).
Compute Atlas 1.34.1 with retained prior rows and publication holds. This is a DataCenterData composite, not an unmodified publisher edition. This row uses the captured source from 1.34.1, source as of 2026-10-14T20:40:52.293Z.
That does not mean the row is wrong, and it does not mean no reviewed record exists for the same place. A link is added only when an identifier or source establishes the match.
Recorded information
What this page records, grouped by topic, with the source's units and qualifications. Company-reported values stay labeled as company-reported. Related listings are shown separately.
Licensed directory listing dcd-dir-000156
Licensed directory row.
Provider notes and the source narrative are printed on this page and are not repeated here.
Identity and relationships
- Provider facility type: data center
Provider facility type.
- AI-use label (provider): mixed use
Compute Atlas classification, not a DataCenterData finding.
Location and precision
- Marysville, OH · Union (Approximate location)
Roles
- Operator: Amazon Web Services
Operator label as published by the provider; no parent company is inferred.
Lifecycle
- Source-stated status: source-reported under construction
Provider status label; not a DataCenterData finding that the facility is operating.
- Announced: October 2024
Provider-reported announcement date.
- Status history: 2024-10 · source-reported proposed
Status history supplied by the source.
- Status history: 2025-03 · source-reported permitted
Status history supplied by the source.
- Status history: 2026-01 · source-reported under construction
Status history supplied by the source.
Area, acreage and buildings
- Land area: 55 acres (source-reported; parcel boundary not established)
Power capacity
- Reported capacity: Not stated
Reproduced as the page prints it; not ranked or totaled; unknown is not zero.
- Power supply description: Grid (city water supply; non-contact cooling with on-site storage)
Provider’s own description of the power supply; no separate utility field was supplied.
- Power source: Grid
Provider label.
Permits, incentives, jobs and proceedings
- Announced investment: $1 billion
Announced figure; whether it covers one building, a campus or a multi-phase program is not established.
- Announced jobs: 50 permanent
Announced figures; whether they cover one building, a campus or a multi-phase program is not established.
- Incentive reported by the source: 30-year 100% property tax exemption (Community Reinvestment Area) · Marysville, Union County, OH · 2025
Whether the incentive was approved, awarded or received is not established.
Sources, dates, limitations and corrections
- Provider update date: 2026-07-06
Provider update date is not a DataCenterData verification date.
Not yet recorded here: Cooling, water, PUE and WUE · Connectivity · Services · Certifications and design ratings · Rack density · Availability · Specification links and contact.
Licensed values: adapted from Compute Atlas by Edward Kubiak under CC BY 4.0. Source-reported and not independently verified.
Update this profile with a public source. The request includes topics needing more information; this does not mean the facility lacks them. Corrections and additions are reviewed before publication.