|Greene County Sheriff's Office||Carrollton||Illinois 62016|
|Jersey County Sheriff Department||Jerseyville||Illinois 62052||17 miles|
|Calhoun County Sheriff's Office||Hardin||Illinois 62047||19 miles|
|Scott County Sheriff's Office||Winchester||Illinois 62694||19 miles|
|Morgan County Sheriff's Office||Jacksonville||Illinois 62650||28 miles|
|Macoupin County Sheriff's Office||Carlinville||Illinois 62626||28 miles|
|Pike County Sheriff's Office||Pittsfield||Illinois 62363||28 miles|
|St Charles County Sheriff's Office||O'Fallon||Missouri 63366||40 miles|
|Lincoln County Sheriff's Office||Troy||Missouri 63379||41 miles|
|Cass County Sheriff's Office||Virginia||Illinois 62691||42 miles|
|Pike County Sheriff's Office||Bowling Green||Missouri 63334||44 miles|
|Madison County Sheriff's Office||Edwardsville||Illinois 62025||44 miles|
|Brown County Sheriff's Office||Mount Sterling||Illinois 62353||48 miles|
|St Louis County Sheriff's Office||Clayton||Missouri 63105||49 miles|
|Sangamon County Sheriff's Office||Springfield||Illinois 62701||50 miles|
|Montgomery County Sheriff's Office||Hillsboro||Illinois 62049||50 miles|
|Menard County Sheriff's Office||Petersburg||Illinois 62675||54 miles|
|Schuyler County Sheriff's Office||Rushville||Illinois 62681||54 miles|
|Warren County Sheriff's Office||Warrenton||Missouri 63383||56 miles|
|Ralls County Sheriff's Office||New London||Missouri 63459||56 miles|
A sheriff is an elected law enforcement official who serves a specific county. Many of the responsibilities of the sheriff overlap with those of local police departments. The biggest difference is that a sheriff has jurisdiction over the entire county, while police departments can only enforce laws within city limits.
While sheriffs share law enforcement duties with city police officers, their degree of responsibility varies by jurisdiction. Municipalities with limited resources often contract law enforcement services to the sheriff, especially for complex crimes where they may not be equipped to conduct a detailed investigation.
Sheriffs tend to be more involved in cases where a suspect operates across city lines. Since they have the authority to investigate crimes and make arrests in any city in their jurisdiction, they often act as a bridge between various municipal law enforcement agencies in that jurisdiction.