There are at least six data center facilities either operating, under construction, or approved in Round Rock, Texas.

Local count and recent approvals

  • The city has multiple existing campuses including Sabey and Switch that are operational or recently completed in Round Rock.
  • City council approvals and recent reporting show additional projects approved (for example Skybox’s ~30‑acre Old Settlers site), bringing the local total to at least six active/approved facilities as of mid‑2026.

Regional context (Williamson County / Austin metro)

  • Williamson County and the wider Austin area are experiencing a data‑center boom with dozens of facilities planned or operating; county reporting estimates about 30 facilities either operating or planned in the county.
  • Statewide analyses identify hundreds of planned data‑center projects across Texas, which helps explain local growth pressure in Round Rock.

Notable sites in Round Rock

  • Sabey Data Centers campus (hosts UT’s TACC “Horizon” supercomputer) is an established Round Rock site.
  • Switch operates a Round Rock East campus.
  • Skybox Datacenters received approval for a large data‑center PUD on Old Settlers Boulevard (approved June 2026).
  • Reporting and local trackers list other projects (Colovore, Blueprint/others) and indicate at least one Amazon-permitted site nearby.

Caveats and next steps

  • Public reporting varies about whether counts include only fully built facilities, buildings under construction, or approved/planned projects; different sources use different definitions.
  • If you need an exact, up‑to‑date list with addresses and operational status, I can compile one from city records and industry directories (including the City of Round Rock’s data‑center page and industry maps) and present it as an HTML table. The city’s official page provides project-specific details and is a good primary source.

Bottom note: Information gathered from public forums or data available on the internet and portrayed here.