San Antonio is the seventh most populous city in the United States and the second most populous city in the state of Texas, with a population of 1.3 million. It was the fastest growing of the top 10 largest cities in the United States from 2000-2010. The city is located in the American Southwest, the south–central part of Texas, and the southwestern corner of an urban region known as the Texas Triangle.
San Antonio has a strong military presence—it is home to Fort Sam Houston, Lackland Air Force Base, Randolph Air Force Base, and Brooks City-Base, with Camp Bullis and Camp Stanley outside the city. San Antonio is home to five Fortune 500 companies and the South Texas Medical Center, the only medical research and care provider in the South Texas region.
The median income for a household in the city is $36,214, and the median income for a family is $53,100. Males have a median income of $30,061 versus $24,444 for females. The per capita income for the city is $17,487. About 17.3% of the population and 14.0% of families are below the poverty line. Of the total population, 24.3% of those under the age of 18 and 13.5% of those 65 and older are living below the poverty line.