|— City —|
|• Total||8.02 sq mi (20.77 km2)|
|• Land||7.94 sq mi (20.56 km2)|
|• Water||0.08 sq mi (0.21 km2)|
|Elevation||981 ft (299 m)|
|• Estimate (2011)||14,277|
|• Density||1,791.3/sq mi (691.6/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||1566104|
John Thiel and Nicolas Simon first surveyed the area that would become Hartford in 1843. James and Charles Rossman accompanied Nicolas Simon back to Hartford in 1844, and soon bought 40 acres around the rapids of the Rubicon River. After constructing a dam across rapids in the river, the Rossmans built a sawmill that harnessed 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.
Tornado of 2006 
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.
2010 census 
As of the census of 2010, there were 14,223 people, 5,685 households, and 3,721 families residing in the city. The population density was 1,791.3 inhabitants per square mile (691.6 /km2). There were 6,032 housing units at an average density of 759.7 per square mile (293.3 /km2). The racial makeup of the city was 94.7% White, 0.9% African American, 0.5% Native American, 0.8% Asian, 1.8% from other races, and 1.2% from two or more races. Hispanic or Latino of any race were 4.8% of the population.
There were 5,685 households out of which 35.1% had children under the age of 18 living with them, 51.4% were married couples living together, 9.1% had a female householder with no husband present, 5.0% had a male householder with no wife present, and 34.5% were non-families. 28.3% of all households were made up of individuals and 11.5% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 3.06.
The median age in the city was 35.6 years. 26.5% of residents were under the age of 18; 7.5% were between the ages of 18 and 24; 29.4% were from 25 to 44; 23.1% were from 45 to 64; and 13.6% were 65 years of age or older. The gender makeup of the city was 49.1% male and 50.9% female.
2000 census 
As of the census of 2000, there were 10,978 people, 1,397 households, and 1,152 families residing in the city. The population density was 133.6 people per square mile (51.6/km²). There were 1,438 housing units at an average density of 47.6 per square mile (18.4/km²). The racial makeup of the town was 98.88% White, 0.20% African American, 0.10% Native American, 0.37% Asian, 0.15% from other races, and 0.30% from two or more races. Hispanic or Latino of any race were 0.55% of the population.
There were 1,397 households out of which 40.6% had children under the age of 18 living with them, 74.7% were married couples living together, 4.0% had a female householder with no husband present, and 17.5% were non-families. 14.5% of all households were made up of individuals and 4.2% had someone living alone who was 65 years of age or older. The average household size was 2.88 and the average family size was 3.19.
In the city the age of the population was spread out with 28.0% under the age of 18, 6.0% from 18 to 24, 31.8% from 25 to 44, 25.8% from 45 to 64, and 8.4% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 102.6 males. For every 100 females age 18 and over, there were 107.1 males.
The median income for a household in the city was estimated at $53,357  and the median income for a family was $73,576. Males had a median income of $42,301 versus $29,727 for females. The per capita income for the town was $26,928. About 1.1% of families and 1.9% of the population were below the poverty line, including 4.5% of those under age 18 and 0.7% of those age 65 or over.
Hartford has a mayor-council form of government. Joe Dautermann is the mayor of Hartford. The Common Council is made up of nine aldermen, three elected from each of three aldermanic districts.
Hartford was an early car manufacturing center, home to the Kissel Motor Car Company before 1926. The city was the home of a Chrysler Marine engine plant, a Libby's beet processing plant, and now many smaller industries, including the headquarters and a manufacturing site for Broan-NuTone, LLC and the health care information technology firm API Healthcare.
The School District of Hartford provides public education to elementary students in Hartford. Lincoln and Rossman Elementary Schools each serve roughly half of the city's kindergarten through fifth grade student population. Both schools are feeders to Central Middle School, which serves all Hartford students in grades 6 through 8.
Secondary education is provided by Hartford Union High School (HUHS), which is independent of the School District of Hartford. It has an enrollment of about 1700 students. The high school serves the city of Hartford, the Town of Hartford, and most of the surrounding communities including Richfield, Erin, Friess Lake, and Neosho.
Several parochial schools are in the community, including St. Killians Roman Catholic School and Peace Lutheran.
The city's library is Jack Russell Memorial Library.
Area information 
- The city has recently annexed parts of the town of Hartford and other areas, including Pike Lake. The Pike Lake Unit of the Kettle Moraine State Forest is situated on the lake.
- The city has a major industrial park on the outskirts of the city, including a Quad Graphics factory that employs many city residents.
- Hartford is home to the Schauer Arts & Activities Center, a regional arts center that stages professional touring performances, offers arts classes for all ages, and hosts social and business functions.
- Hartford is also home to Erin Hills, a public golf course selected to host the 2017 United States Open.
Notable people 
- Samuel S. Barney - Justice of the U.S. Court of Claims and Congressman
- Hopewell Coxe - Wisconsin State Assemblyman
- Edward J. Gehl - Wisconsin Supreme Court justice
- Dennis Hall - Olympic Wrestler
- Polly Koch - Professional football player
- Don Pridemore, legislator
- John Reiser - Former general manager of Roush Racing NASCAR Busch Series and NASCAR Craftsman Truck Series race shops
- Adam Schantz - Wisconsin State Senator
- Ronald A. Sell - Wisconsin State Assemblyman
- John Shinners - NFL player
- Jeremy Unertl - Professional football player
- "US Gazetteer files 2010". United States Census Bureau. Retrieved 2012-11-18.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "American FactFinder". United States Census Bureau. Retrieved 2012-11-18.
- "Population Estimates". United States Census Bureau. Retrieved 2013-01-02.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- Hartford Centennial Commitee. "Hartford, County & State History". Retrieved 6 November 2012.
- Hartford Website Historic Page
- JS Online: Tornado rips through Hartford
- Clymer, Floyd. Treasury of Early American Automobiles, 1877-1925 (New York: Bonanza Books, 1950), p.2 & 153.
- "Hartford Union High School District".
- 'Wisconsin Blue Book 2011-2012,' Biographical Sketch of Don Pridemore, pg. 85
- City of Hartford website
- Hartford Area Chamber of Commerce
- School District of Hartford
- Hartford Union High School website
- Schauer Arts & Activities Center