There are 4 US Post Offices in Steele County serving a total of 2,747 residents equating to 687 residents per post office. It's estimated that approximately 4,385 packages are handled across the 4 county post offices annually. Steele County is a county located in the U.S. state of North Dakota. As of the 2010 census, the population was 1,975. It was established in 1883 by partition of Griggs and Traill counties, and named for businessman Edward H. Steele who was in large part responsible for its creation. Its county seat since 1919 is Finley."