AustinIO > Texas Nexus > TX LLM Footprint > Microsoft Compute: Microsoft Castroville
Microsoft Castroville Data Center
Microsoft is the primary tenant at the Microsoft Castroville data center in San Antonio and Castroville. Cloud compute for Azure is consumed here.
| Tenant: | Microsoft |
| Facility: | Microsoft Castroville |
| Operator: | Microsoft |
| Location: | San Antonio and Castroville |
| Capacity (MW): | |
| Status: | Operational / Under Construction |
| Type: | Hyperscaler |
| Workload: | Cloud |
| Product: | Azure |
| Power: | ERCOT grid (CPS Energy) |
| GPU: | Nvidia / Azure Maia |
| Operational: | 2020+; new builds to 2028 |
| Investment (B): | 0.8 |
Notes: Texas Research Park anchors the far west side on 300+ acres, with 90 more acres acquired at Wiseman and Loop 1604. In Medina County Microsoft has assembled 1,000+ acres: SAT 82 at 18844 FM Road, Castroville ($482M, 244,675 sq ft, Apr 2026 to early 2028) and a second at 3580 FM 471 North.