On behalf of the Plymouth County Sheriff’s Office, I want to welcome you to our website. Plymouth County is located in the NW corner of Iowa, bordering South Dakota, with Woodbury and Sioux Counties on the south and north. We are the 4th largest county in square miles in the state, with a population of approximately 25,000. The county seat is also the ICE CREAM CAPITAL OF THE WORLD - LE MARS, IOWA.
Hopefully, you will find this website user-friendly and provide you with answers to questions you may have. If not, we welcome your feedback and will do everything possible to accommodate the people we serve.
--Sheriff Van Otterloo