1. News
  2. Jobs
  3. Calendar
  1. 290th Street Closed for Culvert Replacement

    On Wednesday, October 19, 2016, Washington County will close part of 290th Street to thru traffic at a small stream approximately 1/8 mile east of Larch Ave, for a culvert replacement project. To view the official press release follow the link below. Read on...
  2. Auditor's Office - General Election Office Hours

  3. ISAC Voting In Iowa Videos

View All
  1. Courthouse with Flowers

    Washington County

    Washington County was originally organized and established in 1839 as Slaughter County; however, residents soon changed the name to Washington County in honor of George Washington.

    Washington County covers 556.75 square miles and is located in Southeast Iowa - the richest area of America's agricultural region. As of the 2010 census, the population was 21,704. The nine incorporated cities in the county are Ainsworth, Brighton, Coppock, Crawfordsville, Kalona, Riverside, Washington, Wellman, and West Chester.