Welcome to Plymouth County

map of IowaPlymouth County is located in the northwest corner of Iowa, with a population of 25,698 and 11 communities.  Plymouth County was formed on January 15, 1872, the county seat was moved to LeMars and a courthouse and jail were built there in 1873.  The present Plymouth County Courthouse was built in 1900 of red sandstone.

During the Great Depression, farmers in the county organized the Farmers Holiday Group, to keep farm products off the market until the desired price was met.  A radical group among them abducted Judge Bradley from his court chambers and threatened to hang him.  Bradley was freed, but the governor ordered the national guard to Plymouth County and declared a state of emergency , which effectively ended the group.

Plymouth County is administered by a five member Board of Supervisors who are elected to a four year terms.  Other elected offices include the Attorney, Auditor, Recorder, Sheriff and Treasurer.

The Following Holidays are recognized by the Plymouth County Courthouse employees and other County Departments.

Good Friday  Friday March 29th
Memorial Day - Monday May 27th
Independence Day - Thursday July 4th
Labor Day - Monday September 2nd
Veterans Day (Observed) - Monday November 11th
Thanksgiving Day - Thursday November 28th
Day After Thanksgiving - Friday November 29th
Christmas Eve - Tuesday December 24th
Christmas Day - Wednesday December 25th
New Years Day - Wednesday January 1st, 2025

There are other offices in the Courthouse that are State and not County Offices.  See the Clerk of Courts web page to find out what Holidays are recognized by the State Of Iowa.