aurora in what county
Aurora is a city in Lawrenceburg and Center townships of Dearborn County, Indiana, United States, along the Ohio River. The population was 3,965 at the 2000 census. Aurora is located at 39Â°3â²31â³N 84Â°54â²23â³W / 39.05861Â°N 84.90639Â°W / 39.05861; -84.90639 (39.058551, -84.906351). According to the United States Census Bureau, the city has a total area of 2.9 square miles (7.5 km2), of which 2.8 square miles (7.3 km2) is land and 0.1 square miles (0.3 km2) (4.79%) is water.