How Sheriff Offices Are Organized Across Illinois's 102 Counties

Illinois has 102 counties, and every one of them elects its own sheriff. The office is created by the Illinois Constitution and detailed in the Counties Code, so there is no single statewide sheriff's department. Each office answers to local voters, sets its own office hours, and runs its own jail or arranges for one. Knowing this saves time when you need to serve papers, check on someone in custody, or report a problem outside city limits.

Sheriffs serve four-year terms and are elected in the same cycle as the governor. They hire deputies, correctional officers, and civilian staff, but the county board approves the budget. That is why a large metro office and a small river-county office can share the same title and still offer very different services.

The state sets standards but does not run local offices. The Illinois Law Enforcement Training and Standards Board certifies officers and deputies, and the Illinois Sheriffs' Association supports training and coordination among sheriffs. Neither one answers your calls about a local matter. The county sheriff's office is always the place to start.

What Illinois Sheriffs Handle That City Police Do Not

A sheriff's work falls into three main areas: patrol, the county jail, and the courts. City police departments cover incorporated towns. Sheriffs cover the rest of the county, and they back up municipal departments when asked.

Patrol and investigations outside city limits

If you live in an unincorporated area, a township, or a village with no police department, the sheriff is usually your law enforcement agency. Deputies respond to 911 calls, take reports, investigate crimes, and serve arrest warrants. In rural places such as Hardin County, Calhoun County, and Wayne County, the sheriff's office may be the main police presence across wide areas of farmland, bluffs, and forest. Expect longer response times than in a city, and plan accordingly for non-urgent requests.

The county jail

In most Illinois counties the sheriff is also the jail administrator. The jail holds people arrested in the county, people waiting for court dates, and some people serving short sentences. It is separate from state prisons, which the Illinois Department of Corrections operates. Several of our listings combine both roles. Examples include the Madison County Sheriff and Madison County Jail at 405 Randle Street in Edwardsville, and the Saint Clair County Sheriffs Department and Jail at 700 North 5th Street in Belleville.

Court security and civil process

Deputies keep order in county courthouses and carry out court orders. That includes serving summonses and subpoenas and enforcing orders of eviction. A deputy cannot remove a tenant or seize property without a court order. If you are a landlord or a plaintiff, you file with the circuit clerk first, then request service through the sheriff and pay the service fee. Fees can differ by county and by type of service, so call before you drop off papers.

Metro Sheriffs and Rural Sheriffs in Illinois Work Very Differently

The largest office in the state is the Cook County Sheriff's Office. Our listing places the Cook County Department of Corrections at 2700 South California Avenue in Chicago, phone 708-865-4700. The Chicago Police Department patrols city streets, so the sheriff's role there centers on the jail, courthouse security, evictions, and unincorporated or contracted areas. The jail complex is one of the largest single-site jails in the United States.

The collar counties look different again. The Will County Sheriffs Office is at 2420 East Laraway Road in Joliet (815-727-8895). The Kankakee County Sheriff's Office is at 3000 S Justice Way in Kankakee (815-802-7100). Kane County and Lake County each show three listings in our database, so check the address before you travel.

The Metro East counties sit in the St. Louis region across the Mississippi River. Madison County has six listings in our database, and St. Clair County centers on Belleville (618-277-3505). Farther north, Rock Island County also has six listings, which fits a county that spans the Quad Cities along the river.

Rural counties run leaner. The Massac County Sheriff's Office is at 519 Market Street in Metropolis (618-524-2912), on the Ohio River. The Wabash County Sheriff's Office is at 120 East 4th Street in Mount Carmel (618-262-4186). In counties this size, deputies often cover patrol, civil papers, and court duty in the same week. Front-desk hours may be shorter, and the person who answers may be a dispatcher rather than a records clerk. Calling first is the practical way to reach the right person.

Names can also mislead you. The city of Hardin is the county seat of Calhoun County, not Hardin County. The Calhoun County Sheriffs Department and Jail is on North County Road in Hardin (618-576-2417), while the Hardin County Sheriffs Office is on Market Street in Elizabethtown (618-287-2271). Sending papers to the wrong county can delay a case by weeks.

Before You Visit or Call a Sheriff's Office in Illinois

Many sheriff's offices sit close to the county courthouse. Addresses such as 111 East Court Street in Eureka, 305 East Court Street in Fairfield, and 300 West Court Street in Jacksonville show the pattern. Civil process, records, and jail visitation may still be handled at different windows or in different buildings, so confirm the location first.

Bring what the task requires:

For emergencies, call 911. For everything else, use the listed office number. Dispatch and the jail typically run around the clock, while civil process and records staff keep weekday business hours.

Details change after elections and budget cycles, so use the listings below to find your county and then call to confirm hours, fees, and visiting rules before you go.

Sheriff offices in Illinois are independently elected county agencies responsible for law enforcement, jail operations, and civil process service. Each county in Illinois elects its own sheriff, who serves as the chief law enforcement officer for that county's unincorporated areas.

Sheriff locations are available in 115 cities across Illinois. They are spread across 102 counties.

Cities with the highest concentration of sheriff office listings include Lincoln, Winchester, Lacon, reflecting the population centers where multiple sub-offices or specialty divisions may be located.

Illinois residents should note that sheriff offices handle civil law enforcement functions — such as serving eviction notices and foreclosure papers — in addition to criminal law enforcement, so the sheriff office is often the correct point of contact for civil legal matters at the county level.

Sheriff by Counties

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If you are a Illinois resident looking to obtain a concealed carry permit, request a background check clearance letter, or serve legal documents through official channels, your county sheriff office is the starting point — contact them directly to confirm required documentation and current processing times.

Browse Sheriff by county across Illinois to find the nearest location.

Finding the Right Sheriff's Office in Northern, Central, and Southern Illinois

In northern Illinois, the Boone County Sheriff's Office is at 615 North Main Street in Belvidere (815-544-9322). The Stephenson County Sheriff's Law Enforcement Division is at 204 West Exchange Street in Freeport (815-235-8252). The Ogle County Sheriffs Office is at 202 South 1st Street in Oregon (815-732-6666).

Central Illinois has many courthouse-square offices. The Woodford County Sheriff and Jail are at 111 East Court Street in Eureka (309-467-2375). The Marshall County Sheriff is at 520 6th Street in Lacon (309-246-2115). The McDonough County Sheriff is at 110 South McArthur Street in Macomb (309-833-2323). The Logan County Sheriffs Office is at 911 Pekin Street in Lincoln (217-732-2156). The Dewitt County Sheriff's Office is at 101 West Washington Street in Clinton (217-935-9507), and the Morgan County Sheriff's Office is at 300 West Court Street in Jacksonville (217-245-4143). The Effingham County Sheriff's Office is at 101 North 4th Street in Effingham (217-342-8463).

In the south, the Jefferson County Sheriff's Office is at 911 Casey Avenue in Mount Vernon (618-244-8004). The Williamson County Sheriff's Office is at 200 West Jefferson Street in Marion (618-997-6541). The Washington County Sheriff and Jail are at 245 North Kaskaskia Street in Nashville (618-327-8273). The Jersey County Sheriff's Office is at 114 North Washington Street in Jerseyville (618-498-6881).

Some listings spell names differently from official usage, such as Dewitt for De Witt. Search by county and city if a name does not match at first.

No. The Illinois State Police issues both the Firearm Owner's Identification (FOID) card and the concealed carry license, and applications go through the state police online system. A sheriff's office cannot approve, renew, or replace either one. A deputy can take a police report if your card is lost or stolen, and staff may answer general questions about local procedures. If your card status is the issue, contact the Illinois State Police directly instead of driving to the county seat. Keep your FOID number handy when you call so the agency can find your file quickly.

Call the jail or sheriff's office in the county where the arrest happened. Many offices post an online inmate roster, but not all do, and a roster can lag behind a recent booking. Have the person's full legal name and date of birth ready. For example, the Madison County Jail in Edwardsville is listed at 618-692-6087, and the Cook County Department of Corrections in Chicago at 708-865-4700. Staff can often confirm the charge, the next court date, and visiting rules. Ask about phone accounts and commissary deposits too, since each jail uses its own system.

In most cases the county sheriff does. A landlord must first win an eviction judgment in circuit court. The court then issues an order of eviction, and a sheriff's deputy carries it out on a scheduled date. A landlord cannot lock a tenant out or remove belongings without that order. Deputies also serve summonses and subpoenas, although in some situations a court-approved private process server may handle service. Fees vary by county and service type, so call the civil process desk before you file. Tenants with questions about their case should contact the circuit clerk or a legal aid office.

City police enforce the law inside their municipal limits. The sheriff covers the whole county but in practice focuses on unincorporated areas, the jail, and the courts, and assists city departments. The Illinois State Police is a statewide agency that patrols interstates and state highways, runs forensic labs, and handles FOID and concealed carry licensing. In Effingham County, where I-57 and I-70 cross, a single crash can involve more than one agency. Dispatchers send whichever agency has jurisdiction, so you do not have to decide during an emergency.

Yes. The Pretrial Fairness Act took effect on September 18, 2023, and Illinois became the first state to eliminate cash bail. Judges now decide at a hearing whether a person should be released or detained, based on safety and flight risk rather than ability to pay. Sheriff's offices still hold people the court orders detained and process releases. Families should not expect to post money at the jail window in most cases. Call the sheriff's office for custody status and the circuit clerk for hearing dates, because case decisions rest with the court.

Often, yes. Under the Illinois Freedom of Information Act, a public body must respond to a written request within five business days and may extend that by five more business days in certain cases. Sheriff's offices can withhold material tied to active investigations, juvenile records, or personal privacy. Send your request in writing and describe the incident, date, and location. Some offices charge copying fees for large requests. For a crash report, ask whether the sheriff or the Illinois State Police responded. If you are denied, you can ask the Public Access Counselor in the Attorney General's office to review the decision. Also see Hardin County for a small-county example of how requests are routed.