If you are in St. Louis:
Call 2-1-1 and/or the Housing Resource Center at 314-802-5444
http://www.stlcc.edu/Document_Library/TANF_Information/Housing_Shelters_and_Homeless_Serivces.pdf
If you have children and are in St. Louis:
Crisis Nursery - (314) 292-5770
Annie Malone - (314) 531-0120
Mary Grove - (314) 837-1702
Nationwide Resources:
http://www.nationalhomeless.org/need_help/