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DataCentersExposed
County data-center profile

Bexar County, Texas

DataCentersExposed tracks 21 AI data centers in Bexar County, Texas — 3 operating and 0 in the pipeline, drawing 380 MW of reported power demand, led by Microsoft Corporation. Its transparent data-center risk score is 0/100.

Sources: Methodology, Coverage scorecard

Bexar County, Texas has 21 tracked data centers, 3 of them operating. Its composite data-center risk score is 45 out of 100 — see the breakdown above for which factors drive it.

Facilities
21
Operating
3
Pipeline
0

Reporting by · Updated May 29, 2026

Risk breakdown
45Moderate
  • Project exposure · 38
  • Power demand · 55
  • Water draw · n/a
  • Land footprint · n/a
Overview

What's happening in Bexar County

Facilities here with disclosed capacity draw 380 MW from the local grid. Data-center load on this scale is the single biggest driver of recent capacity-market price increases — costs that flow through to every ratepayer in the service territory, not just the operators.

Microsoft Corporation has the largest presence in Bexar County. We resolve project codenames and shell LLCs back to the corporate parent wherever the public record allows, so the table below names who is actually behind each site.

Below: every tracked facility in the county, the active state legislation that names it or its county, and local news. Commissioner vote records arrive in a later release; the placeholders show where that accountability data will land.

21 facilities

Every tracked facility

FacilityOperatorStatusMW
Microsoft San Antonio (Quarry)
San Antonio
Microsoft CorporationMapped (unverified)380
AmazonAmazon.com, Inc.Mapped (unverified)
Amazon AWS SAT - 12807 DonopAmazon.com, Inc.Mapped (unverified)
CHRISTUS HealthMapped (unverified)
CyrusOne SAT10 & SAT11CyrusOne LLCMapped (unverified)
CyrusOne San Antonio I
San Antonio
CyrusOne LLCOperating
CyrusOne San Antonio IIICyrusOne LLCMapped (unverified)
Frost BankMapped (unverified)
GvtcMapped (unverified)
H5 Data Centers San Antonio
San Antonio
Prime Data CentersOperating
Heb
San Antonio
Mapped (unverified)
Lowe's Data CenterPrime Data CentersMapped (unverified)
Lumen San Antonio 2Lumen Technologies, Inc.Mapped (unverified)
Microsoft
San Antonio
Microsoft CorporationMapped (unverified)
Microsoft
San Antonio
Microsoft CorporationMapped (unverified)
Microsoft San Antonio
San Antonio
Microsoft CorporationMapped (unverified)
QTS San Antonio II
San Antonio
QTS Realty Trust, LLCMapped (unverified)
Stream San Antonio IIStream Data CentersOperating
Texas Cryptologic CenterMapped (unverified)
Valero WisermanMapped (unverified)
Vantage Data Centers TX22
San Antonio
Vantage Data Centers Holdings, LLCMapped (unverified)
Accountability

County commissioners

How the Bexar County board votes on each data-center matter — the rezonings, the abatements, the water permits — is built from public-meeting minutes and roll-call records. Know of a vote we should be tracking? Tell us.

Methodology & sources

The risk score weights project exposure (40%), power demand (30%), water draw (15%), and land footprint (15%). Water and land are not yet measured for our facilities, so those arcs render as "not yet measured" and the weights are renormalized over the factors we can source today — when the data lands, the score updates.

Every row carries a confidence level (high / medium / low) and a source URL. Spot an error? Tell us.