The Kansas City District Office serves western Missouri. The St. Louis Sub Office serves eastern Missouri. The INS Kansas City District Office is located at 9747 Northwest Conant Avenue; Kansas City, MO 64153. The Kansas City District Office is open to the public from 7:30 AM to 2:30 PM Monday through Thursday. The office is closed to the general public on Fridays, except for individuals with scheduled appointments with an INS officer. The INS St. Louis Sub Office is located at Robert A. Young Federal Building; 1222 Spruce Street, Room 1.100; St. Louis, MO 63103-2815. The St. Louis Sub Office is open to the public Monday through Friday from 8:00 AM to 3:00 PM. Click here to find the INS USCIS Immigration Forms you need! Click Here for Immigration Information, Reports, and Frequent Questions Click here to find the immigration books and manuals you need!