Hartford is a city in Dodge and Washington Counties in the U.S. state of Wisconsin. As of the 2000 census, the city had a population of 10,978. The city is growing at estimated rate of 10.66% annually, resulting in an estimated population of 13,900 by January 2009.
The city was the site of an F1 tornado on June 18, 2006, which caused minor damage to homes in the area, and major damage on the city's south side. Lincoln Elementary School and the Silver Bell Motel both suffered roof and structural damage.
John Thiel and Nicolas Simon first surveyed the area that would become Hartford in 1843. They returned in 1844 with James and Charles Rossman to build a dam across rapids in the Rubicon River. The Rossmans built a sawmill that harnassed the power of the water to make lumber for the growth of the area. Rails were laid in 1855 that linked Chicago, Milwaukee, La Crosse and Minneapolis until the early 1900s.