CASA of Southwest IA Share: Human Services CASA of Southwest IA Visit Website Request Info Pottawattamie County Courthouse 227 S. 6th St Council Bluffs, Iowa 51501 7123284811 About Map About Court Appointed Special Advocates are ordinary people who care about children. They volunteer their time to support and advocate for children who currently have a case in the Child Welfare System. What's Nearby? Distance: 5 10 15 20 25 50 mi.