When Microsoft confirmed its plans to build a data center in Iowa, it didn't provide a location for the facility, although most of the speculation has focused on the Des Moines area. An Iowa political blog, The Price of Politics, believes the choices are narrowing to two towns:
Microsoft's been eyeing West Des Moines and Urbandale for months for its new data center (thanks, in part, to a bunch of tax breaks from the state of Iowa). My sources had been telling me West Des Moines would be the likely destination. Although several other sources say Urbandale looks stronger now.
Both cities are western suburbs of Des Moines. Microsoft's recent data center projects have been in the range of 550,000 square feet with an investment of $500 million.