Southeast CASA serves children in Yankton, Clay, Bon Homme, and Union counties in South Dakota
Our mailing address is :
P.O. Box 7017
Yankton, SD 57078-7017
Our Main Office is in Yankton at 327 Broadway Ave., Suites 8 & 11.
Our satellite office is in Vermillion (no mail delivered to this address) at 23 W. Main Street.