# Google Mayes County Campus

SPP data center · https://askthegrid.com/assets/facilities/google-mayes-county-campus

Google’s Mayes County campus is an operating and expanding data center in Pryor, Oklahoma, served by the Grand River Dam Authority within SPP. Google announced the project in 2007 and has expanded it repeatedly, with two additional buildings announced as part of its latest Oklahoma investment. Public records report 195 MW for the campus and separately identify a 48 MW wind-energy supply arrangement. The profile also traces the site’s solar procurement, development phases, land history, and utility relationship without treating announced expansion as operating capacity.

## Identity and location

- Operating status: expanding
- Asset scope: campus
- Location: 4581 Webb Street, Pryor, Mayes County, Oklahoma
- Owner: Google (campus) — https://www.datacenters.google/locations/oklahoma/
- Operator: Google (campus) — https://www.datacenters.google/locations/oklahoma/
- Utility: Grand River Dam Authority (campus) — https://grda.com/

## Power and grid context

- Campus gross power: 195 MW · reported · exact asset · as of 2026-06-18 — Reported power capacity for the operating Google/Mayes County data-center site at 4581 Webb Street; the source does not identify whether this is utility service, interconnection, gross campus, or critical IT capacity.
- Contracted power: 48 MW · contracted · exact asset · as of 2012-09-26 — Wind-energy supply from the Canadian Hills Wind Project arranged through GRDA for Google's Mayes County data center.
- ISO/RTO: Southwest Power Pool (SPP)
- Balancing authority: Southwest Power Pool (SPP)
- Electric utility: Grand River Dam Authority (GRDA)

## Development

- Site status: Operating and expanding. The campus is fully operational, while additional Pryor expansion capacity announced in 2025 remains separately identified as announced/under construction rather than operating.
- Site area: 800 acres
- Gross floor area: 1,400,000 square feet
- Buildings: 8
- Construction: Google announced the Mayes County project in 2007. The first 130,000-square-foot facility opened in Pryor in 2011 after construction had been put on hold in 2008. Google announced further campus expansions in 2012, 2015, 2018, and 2019; a four-story facility was completed and opened in September 2016, and another four-story facility was announced in 2018. A $75 million expansion investment was announced in 2022. In 2025, Google announced a further expansion of the existing Pryor facility involving two additional buildings as part of its $9 billion Oklahoma investment. Public permit-tracking records identify a Myall LLC Pryor data-storage-facility permit as issued in 2023 and a modification as draft/proposed in 2025; separate reporting lists the site as under construction in 2026.

## Compute and operations

- Facility classes: hyperscale, cloud, ai_hpc
- Workloads: Google product infrastructure, Google Cloud AI/ML model training
- Operating context: Google owns and operates the Mayes County campus in Pryor. Built in 2007 and expanded over time, it supports Google product infrastructure and Google Cloud’s AI infrastructure, including a publicly available machine-learning cluster.

## Sources

- [Fetched web page](http://datacenters.google/locations/oklahoma)
- [Residents gather in Mayes County to discuss proposed data centers](http://fox23.com/news/local/residents-gather-in-mayes-county-to-discuss-proposed-data-centers)
- [A loophole leaves Oklahoma data center water consumption largely untracked - Investigate Midwest](http://investigatemidwest.org/2026/07/14/oklahoma-data-centers-water-use-loophole)
- [Board of County Commissioners Mayes County, Oklahoma Alva Martin, District No. 1 1 Court Place, Ste. 140 Steve Grossman, District](http://mayes.okcounties.org/file/meetings/agenda_main_use_1_1-21-25__2140.pdf)
- [Google Planning Another Expansion for Pryor Data Center - Oklahoma Department of Commerce](http://okcommerce.gov/google-planning-another-expansion-for-pryor-data-center)
- [Grand River Dam Authority Partners With Google on Solar Projects | American Public Power Association](http://publicpower.org/periodical/article/grand-river-dam-authority-partners-with-google-solar-projects)
- [As data centers boom in Oklahoma, so does water demand](http://readfrontier.org/stories/as-data-centers-boom-in-oklahoma-so-does-water-demand)
- [Oklahoma lawmakers tried to cut a costly incentive for data centers, but gave Google a break](http://readfrontier.org/stories/oklahoma-lawmakers-tried-to-cut-a-costly-incentive-for-data-centers-but-gave-google-a-break)
- [Permits for Public Review](https://applications.deq.ok.gov/PermitsPublicReview)
- [applications.deq.ok.gov](https://applications.deq.ok.gov/permitspublic/storedpermits/6797.pdf)
- [Google Mayes County Oklahoma Data Center](https://baxtel.com/data-center/google-mayes-county-oklahoma)
- [Oklahoma voters reject tax reimbursement change tied to ...](https://blockspace.media/insight/oklahoma-rejects-google-data-center/)
- [Google announces new $9 billion investment in Oklahoma](https://blog.google/company-news/inside-google/company-announcements/google-american-innovation-oklahoma/)
- [More renewable energy for our data centers](https://blog.google/company-news/outreach-and-initiatives/environment/more-renewable-energy-for-our-data/)
- [Google announces water stewardship commitments and initiatives](https://blog.google/company-news/outreach-and-initiatives/sustainability/new-water-stewardship-commitments/)
- [Google partners on solar energy projects in Oklahoma](https://blog.google/feed/solar-energy-oklahoma/)
- [Google unveils world’s largest publicly available ML cluster | Google Cloud Blog](https://cloud.google.com/blog/products/compute/google-unveils-worlds-largest-publicly-available-ml-cluster)
- [Google Continues to Invest in Oklahoma](https://content.govdelivery.com/accounts/OKDOC/bulletins/8cfb25)
- [Myall, LLC — MAYES County, OK · DataCentersExposed](https://datacenterexposed.com/facilities/myall-llc-110040506119)
- [Photo gallery – Google Data Centers](https://datacenters.google/discover-more/photo-gallery)
- [Power usage effectiveness – Google Data Centers](https://datacenters.google/efficiency)
- [Oklahoma – Google Data Center Location](https://datacenters.google/locations/oklahoma)
- [Quarter 3 2025 Publicly Announced New and Expanding Oklahoma Companies](https://digitalprairie.ok.gov/digital/api/collection/stgovpub/id/711069/download)
- [Home Page - The Grand River Dam Authority](https://grda.com/)
- [A loophole leaves Oklahoma data center water ...](https://investigatemidwest.org/2026/07/14/oklahoma-data-centers-water-use-loophole/)
- [Google data center opens in Pryor](https://journalrecord.com/2011/09/29/google-data-center-opens-in-pryor-real-estate/)
- [Another expansion planned for Google data center in Pryor](https://journalrecord.com/2019/02/14/another-expansion-planned-for-google-data-center-in-pryor/)
- [Google announces $75 million investment in Oklahoma](https://journalrecord.com/2022/05/04/google-announces-75-million-investment-in-oklahoma/)
- [New Google facility opening in Pryor brings its Oklahoma investment to $2 billion | MidAmerica Industrial Park](https://maip.com/news/article/new-google-facility-opening-in-pryor-brings-its-oklahoma-investment-to-2-billion)
- [nominatim.openstreetmap.org](https://nominatim.openstreetmap.org/search?q=4581+Webb+Street%2C+Pryor%2C+OK+74361&format=jsonv2&addressdetails=1)
- [Google to invest another $75M in Oklahoma; ‘The Internet lives in Pryor,’ mayor says](https://okcfox.com/newsletter-daily/google-to-invest-another-75m-in-oklahoma-the-internet-lives-in-pryor-mayor-says)
- [Active Air Permit Application Listing - Oklahoma.gov](https://oklahoma.gov/deq/permits/air-permits/pp-ip/active-air-permit-listing.html)
- [Google Plans $600 Million Expansion at Pryor, Oklahoma, Data Center - Area Development](https://www.areadevelopment.com/newsitems/6-20-2019/google-midamerica-industrial-park-pryor-oklahoma.shtml)
- [LRE Announces Over 700 MWac of New Solar Projects in Oklahoma Supported by Long-Term Agreements with Google](https://www.businesswire.com/news/home/20250115123798/en/LRE-Announces-Over-700-MWac-of-New-Solar-Projects-in-Oklahoma-Supported-by-Long-Term-Agreements-with-Google)
- [Google to build data center in NE Okla. | News](https://www.cherokeephoenix.org/news/google-to-build-data-center-in-ne-okla/article_f5f3dcae-f6d8-5992-aae2-76c3690cbfec.html)
- [Google Opens Data Center in Mayes County,  Data Center “Powered Up” in Ceremony Featuring VIPs | Business & Energy | citynewsokc.com](https://www.citynewsokc.com/business/google-opens-data-center-in-mayes-county-data-center-powered-up-in-ceremony-featuring-vips/article_bac871f4-1551-5f9d-9b57-162a450413dd.html)
- [Google launches TPU v4 chips, builds 9 exaflops AI cluster](https://www.datacenterdynamics.com/en/news/google-launches-tpu-v4-chips-builds-9-exaflops-ai-cluster/)
- [Google to expand data center in Pryor, Oklahoma - DCD](https://www.datacenterdynamics.com/en/news/google-to-expand-data-center-in-pryor-oklahoma/) — Data Center Dynamics · 2016-09-26
- [​Google to spend $600m on Pryor data center expansion - DCD](https://www.datacenterdynamics.com/en/news/google-to-spend-600m-on-pryor-data-center-expansion/)
- [Google's $600 million Oklahoma expansion - DCD](https://www.datacenterdynamics.com/en/news/googles-600-million-oklahoma-expansion/)

## Data quality

- The research was restricted to Google’s operating Mayes County/Pryor campus and excluded Stillwater, Muskogee County, Emporia, and other proposed or similarly named projects.
- Several reported benefits are Oklahoma-wide or campus-area claims rather than independently itemized benefits tied solely to the 4581 Webb Street parcel.
- The Oklahoma Department of Environmental Quality permit identifies Google LLC as Myall LLC at 4581 Webb Street and authorizes treated cooling-tower-blowdown discharge; it does not establish unreported capacity, water consumption, cooling-system size, or other technical metrics.
- No MW demand, PUE, WUE, building count, tenant, equipment, or commercial-term claims are included.
- Removed uncited provider news result: Google Brings Inspiration to Mayes County, Oklahoma
- Power values retain their reported, requested, contracted, energized, gross-campus, or critical-IT basis.

---

Canonical page: https://askthegrid.com/assets/facilities/google-mayes-county-campus
Profile generated: 2026-08-30T19:54:54.972491Z
Source: Ask the Grid — https://askthegrid.com/