REGISTER NOW In line with its many monikers — the Alamo City, Cyber City and Military City USA — the San Antonio MSA has proven itself time and time again to be a region of opportunity. With a population of over 2.5 million residents, San Antonio has seen an economic boom over the last decade that would be enviable by most other major metropolitan areas. Rooted in industries like aerospace, bioscience and manufacturing, San Antonio is built upon a solid foundation that is primed for continued success.