Welcome to the Crossroads of America — Indianapolis, the most populous city in Indiana. With a population of over 850,000, Indianapolis is the 15th most populous state in the US. Four interstate highways intersect Indianapolis: Interstate 65, Interstate 69, Interstate 70, and Interstate 74. Surrounding the city is the Interstate 465, a beltway making a complete loop around the city. Currently, Indiana Highway 37 is being upgraded to Interstate 69, which will take the highway from Indianapolis to Evansville.