The Dekalb County Jail is located in Sycamore, Illinois at 150 North Main Street 60178. The jail staff can be reached by calling (815) 895-7177.
Source: U.S. Census Bureau
Dekalb has a total population of 107,333. The population has increased by 18,358 (21%) from 2000 through 2009. The population density is 170.0 and covers 631 square miles.