Contact Us   Clarion Sioux City 707 Fourth Street Sioux City, IA, 51101 Phone: (712) 277-4101 Fax: (712) 277-3168 Click here for Directions Click here for Reservations     If you would like to send us questions or comments, please fill out the form below.   * First Name: * Last Name: Address: City: State: Zip Code: Phone: Fax: * Email: Comments: