Auburn is a city in DeKalb County, Indiana, United States. The population was 13,086 at the 2010 census. Founded in 1836 by Wesley Park (1811–1868), the city is the county seat of DeKalb County. Auburn is also known as Home of the Classics.
Auburn is located at 41°21′56″N 85°03′23″W / 41.365505°N 85.056355°W / 41.365505; -85.056355 20 miles north of Fort Wayne in Northern Indiana. Interstate 69 passes just west of the city.
According to the United States Census Bureau, the city has a total area of 6.7 square miles (17.4 km2), all of it land.