DeKalb County Youth Service Bureau (YSB) Social Services DeKalb County Youth Service Bureau (YSB) Visit Website 330 Grove St. DeKalb, IL 60115 (815) 748-2010 (815) 748-2019 (fax) Facebook Hours: Office Hours: M-F 9-5pmCounseling Hours: M-F 9-9pm (By Appointment) About About The DeKalb County Youth Service Bureau (YSB) assists youth as they build healthy lives and relationship with their family, friends, and community.