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 is a primary city of the Omaha-Council Bluffs Metropolitan Area. It is located on the east bank of the Missouri River, across from the city of 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. In 1869, the first transcontinental railroad to California was connected to the existing U.S. rail network at Council Bluffs. Council Bluffs' population was 62,799 at the time of the 2020 census. The Omaha metropolitan region, of which Council Bluffs is a part, is the 59th largest in the United States, with an estimated population of 933,316 (2017).
Sarpy County is a county located in the U.S. state of Nebraska. As of the 2020 United States Census, the population was 190,604, making it the third-most populous county in Nebraska. Its county seat is Papillion.Sarpy County is part of the Omaha-Council Bluffs, NE-IA Metropolitan Statistical Area.
Mills County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 14,484. The county seat is Glenwood. The county was formed in 1851 and named for Major Frederick Mills of Burlington, Iowa who was killed at the Battle of Churubusco during the Mexican–American War.Mills County is included in the Omaha–Council Bluffs, NE–IA Metropolitan Statistical Area.
Cass County is a county in the U.S. state of Nebraska. As of the 2010 United States Census, the population was 25,241. Its county seat and largest city is Plattsmouth. The county was formed in 1855, and was named for General Lewis Cass.Cass County is included in the Omaha-Council Bluffs, NE-IA Metropolitan Statistical Area.In the Nebraska license plate system, Cass County is represented by the prefix 20 (it had the 20th-largest number of vehicles registered in the county when the license plate system was established in 1922).