The parish of Hvideseid was established as a municipality January 1, 1838 (see formannskapsdistrikt). The borders of the municipality are in the northwest to Seljord, east to Nome, south to Drangedal, Nissedal and Fyresdal and west to Tokke. The highest point is Sveinsheia, 1,141 meters above sea level.
Within the municipality of Kviteseid one finds the little village of Morgedal, also known as "The Cradle of Modern Skiing" ("Skisportens vugge"), home of Sondre Norheim. Here, the olympic fire was lit for the Olympic Games in 1952 (Oslo), 1960 (Squaw Valley) and 1994 (Lillehammer).
Kviteseid is also known for being a stop in the Telemark Canal.
Until 1889 the name was written "Hviteseid".