|Lincoln County Sheriff's Office||Troy||Missouri 63379|
|Calhoun County Sheriff's Office||Hardin||Illinois 62047||19 miles|
|Warren County Sheriff's Office||Warrenton||Missouri 63383||20 miles|
|St Charles County Sheriff's Office||O'Fallon||Missouri 63366||23 miles|
|Pike County Sheriff's Office||Bowling Green||Missouri 63334||23 miles|
|Montgomery County Sheriff's Office||Montgomery||Missouri 63361||30 miles|
|Greene County Sheriff's Office||Carrollton||Illinois 62016||34 miles|
|Jersey County Sheriff Department||Jerseyville||Illinois 62052||34 miles|
|Gasconade County Sheriff's Office||Hermann||Missouri 65041||35 miles|
|Pike County Sheriff's Office||Pittsfield||Illinois 62363||39 miles|
|Franklin County Sheriff's Office||Union||Missouri 63084||42 miles|
|Ralls County Sheriff's Office||New London||Missouri 63459||43 miles|
|St Louis County Sheriff's Office||Clayton||Missouri 63105||44 miles|
|Audrain County Sheriff's Office||Mexico||Missouri 65265||47 miles|
|Scott County Sheriff's Office||Winchester||Illinois 62694||48 miles|
|Callaway County Sheriff’s Office||Fulton||Missouri 65251||54 miles|
|Madison County Sheriff's Office||Edwardsville||Illinois 62025||57 miles|
|Marion County Sheriff's Office||Palmyra||Missouri 63461||58 miles|
|Macoupin County Sheriff's Office||Carlinville||Illinois 62626||60 miles|
|Morgan County Sheriff's Office||Jacksonville||Illinois 62650||61 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.