DeKalb County Community Foundation Community OrganizationsMeeting & Event Spaces DeKalb County Community Foundation Visit Website 475 DeKalb Avenue Sycamore, IL 60178 (815) 748-5383 (815) 748-5873 (fax) LinkedIn Facebook Twitter About About Our mission is to enhance the quality of life in DeKalb County by proactively addressing community needs and expanding, managing, and distributing philanthropic resources.