Council Bluffs is a city in and the county seat of Pottawattamie County, Iowa, United States. The city is the most populous in Southwest Iowa, and a principal city in the Omaha–Council Bluffs metropolitan area. It is located on the east bank of the Missouri River, across from Omaha, Nebraska. Council Bluffs was known, until at least 1853, as Kanesville. It was the historic starting point of the Mormon Trail. Kanesville is also the northernmost anchor town of the other emigrant trails, since there was a steam powered boat to ferry their wagons, and cattle, across the Missouri River.Council Bluffs' population was 62,230 at the 2010 census. Along with neighboring Omaha to the west, Council Bluffs was part of the 60th-largest metropolitan area in the United States in 2010, which had an estimated population of 865,350 residing in the eight counties of the Omaha–Council Bluffs metropolitan area.Council Bluffs is more than a decade older than Omaha.