Indianapolis  /ˌɪndiəˈnæpɵlɨs/ (abbreviated Indy /ˈɪndi/) is the capital of the US state of Indiana, and the county seat of Marion County, Indiana. As of the 2010 United States Census, the city's population is 829,718. It is Indiana's largest city and, as of the 2010 U.S. Census, is the 12th largest city in the U.S., the second largest city in the Midwest (behind Chicago), the second most populous state capital (after Phoenix, Arizona), and the most populous state capital east of the Mississippi River. Indianapolis is also one of the fastest growing regions in the United States.

For much of its history, Indianapolis has oriented itself around government and industry, particularly manufacturing. Today, Indianapolis has a much more diversified economy, contributing to the fields of education, health care, and finance. Tourism is also a vital part of the economy of Indianapolis, and the city plays host to numerous conventions and sporting events. Of these, perhaps the most well known is the annual Indianapolis 500 and the NHRA U.S. Nationals. Other major sporting events include the Brickyard 400 and the Men's and Women's NCAA Basketball Tournaments. 2012 marked the first time Indianapolis hosted the Super Bowl. Super Bowl XLVI was played at Lucas Oil Stadium, on February 5, 2012 in Downtown Indianapolis. Also held in Lucas Oil Stadium is the Drum Corps International World Championships, and the Music for All Bands of America Grand National Championships.