|Mahaska County Sheriff's Office||Oskaloosa||Iowa 52577||9 miles|
|Poweshiek County Sheriff's Office||Montezuma||Iowa 50171||12 miles|
|Marion County Sheriff's Office||Knoxville||Iowa 50138||23 miles|
|Keokuk County Sheriff's Office||Sigourney||Iowa 52591||23 miles|
|Jasper County Sheriff's Office||Newton||Iowa 50208||25 miles|
|Monroe County Sheriff's Office||Albia||Iowa 52531||29 miles|
|Wapello County Sheriff's Office||Ottumwa||Iowa 52501||31 miles|
|Iowa County Sheriff's Office||Marengo||Iowa 52301||39 miles|
|Tama County Sheriff's Office||Toledo||Iowa 52342||39 miles|
|Marshall County Sheriff's Office||Melbourne||Iowa 50162||46 miles|
|Lucas County Sheriff's Office||Chariton||Iowa 50049||46 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.