FBI Office in Illinois

FBI offices in Illinois conduct investigations across federal crime categories, working closely with state and local law enforcement agencies to address organized crime, terrorism, and complex financial fraud cases affecting the region.

FBI Office locations are available in 11 cities across Illinois. They are spread across 9 counties.

Cities with the highest concentration include Chicago, Springfield, Effingham, which are home to major FBI field offices or resident agencies serving the state's largest population centers.

Residents of Illinois can report federal crimes online at tips.fbi.gov or by contacting their nearest field office. The FBI's jurisdiction covers matters that cross state lines, involve federal agencies, or violate federal statutes.

Residents of Illinois who have experienced internet fraud, identity theft, or other federal crimes should file a report at IC3.gov or contact their local FBI field office. Keep records of all communications, transactions, and evidence related to the crime before filing your report.

Browse FBI Office by county across Illinois to find the nearest location.