Hartford is a city in Minnehaha County, South Dakota, United States. A suburb of Sioux Falls, Hartford lies a few miles northwest of the city. The population was estimated to be 3,025 in July 2015, up from 2,534 at the 2010 census.HistoryHartford was named in 1880 after Hartford, Connecticut. An early variant name was Oaksville. A post office has been in operation in Hartford since 1880. Hartford was incorporated in 1896.GeographyHartford is located at.According to the United States Census Bureau, the city has a total area of 2.27sqmi, all of it land.Hartford has been assigned the ZIP code 57033.Demographics2010 censusAs of the census of 2010, there were 2,534 people, 913 households, and 684 families residing in the city. The population density was 1116.3PD/sqmi. There were 939 housing units at an average density of 413.7/sqmi. The racial makeup of the city was 96.5% White, 0.6% African American, 1.2% Native American, 0.2% Asian, 0.1% from other races, and 1.4% from two or more races. Hispanic or Latino of any race were 0.6% of the population.