It consists of the municipalities of Ål, Drammen, Flå, Gol, Hemsedal, Hol, Hole, Jevnaker, Kongsberg, Krødsherad, Lier, Modum, Nesbyen, Nore og Uvdal, Øvre Eiker, Ringerike, Rollag and Sigdal in the county of Viken.

The constituency currently elects seven of the 169 members of the Storting using the open party-list proportional representation electoral system.

Buskerud currently elects seven of the 169 members of the Storting using the open[a] party-list proportional representation electoral system.

[7][8] Constituency seats are allocated by the County Electoral Committee using the Modified Sainte-Laguë method.

Results of the 2017 parliamentary election held on 11 September 2017:[15] The following candidates were elected:[16] Lise Christoffersen (Ap); Jon Engen-Helgheim (FrP); Masud Gharahkhani (Ap); Trond Helleland (H); Kristin Ørmen Johnsen (H); Martin Kolberg (Ap); Per Olaf Lundteigen (Sp); Arne Nævra (SV); and Morten Wold (FrP).

Results of the 2001 parliamentary election held on 9 and 10 September 2001:[21][22] The following candidates were elected:[24] Magnar Lund Bergo (SV); Sigrun Eng (Ap); Trond Helleland (H); Beate Heieren Hundhammer (H); Thorbjørn Jagland (Ap); Ulf Erik Knudsen (FrP); and Finn Kristian Marthinsen (KrF).

Results of the 1930 parliamentary election held on 20 October 1930:[94][97] The following candidates were elected:[94] Jon Reinholdt Aas (LS); Christopher Hornsrud (Ap); Harald Saue (Bp); Nils Andreas Steen (Ap); and Ivar Engebretsen Tufte (LS).

Results of the 1924 parliamentary election held on 21 October 1924:[100][101] The following candidates were elected:[100] Jon Reinholdt Aas (LS); Christopher Hornsrud (Ap); Kristen Christoffersen Kopseng (LS); Harald Saue (Bp); and Nils Andreas Steen (Ap).