Cheyenne Annexes 3,500 Acres for Microsoft Data Campus
PUBLISHED Jul 14, 2026, 10:05 AM ET
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Cheyenne, Wyo. — The Cheyenne City Council approved a roughly 3,460–3,500-acre annexation this week after multi-hour hearings held Tuesday evening into Wednesday morning, expanding the city by about 20% to accommodate a Microsoft data center campus; Microsoft closed on the property June 26 after purchasing the land from the family of U.S. Sen. Cynthia Lummis. City officials passed relevant zoning ordinances on final readings and indicated roughly 3,000 acres will receive city services while about 500 acres may remain agricultural as a buffer, according to council comments; residents voiced concerns about the pace of incoming data centers and councilmembers reported differing vote tallies in coverage this week.
By Emily Rhodes | JQJO News
Timeline of Events
- Property was owned by the family of U.S. Sen. Cynthia Lummis prior to sale.
- June 26 — Microsoft closed on the purchase of the property.
- Mid-July — Cheyenne City Council held multi-hour hearings on annexation.
- City Council approved the annexation in a recorded vote and passed zoning on final readings.
- Microsoft plans to develop a data center campus on the annexed land over coming years.
News Intelligence
- Microsoft's new data center in Cheyenne could boost local economy and job opportunities. However, some residents worry about the rapid growth of data centers. If you live in the area, keep an eye on city council meetings for updates on development plans and potential impacts.
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Microsoft, the city government and potential regional economic planners stand to benefit from the annexation through land control, municipal services extension, zoning approvals and prospective investment and employment tied to a major data center campus.
Local residents opposing rapid data center expansion and some Laramie County stakeholders who lost jurisdictional control faced immediate impacts from the annexation and potential changes in land use.
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Cheyenne Annexes 3,500 Acres for Microsoft Data Campus
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