In 2002, there were an estimated 322,360 housing units, of which 291,851 were occupied; 69.4% were owner-occupied. About 66.8% of all units were single-family, detached homes. Utility gas was the most common energy source for heating. It was estimated that 9,442 units lacked telephone service, 1,348 lacked complete plumbing facilities, and 2,936 lacked complete kitchen facilities. The average household size was 2.51 people.
In 2002, 4,816 new privately owned housing units were authorized for construction. The median home value was $90,022. The median monthly cost for mortgage owners was $895. Renters paid a median of $481 per month. During 2002, South Dakota received more than $14.7 million in community planning and development aid from the US Department of Housing and Urban Development.