It consists of the municipalities of Åmli, Arendal, Birkenes, Bygland, Bykle, Evje og Hornnes, Froland, Gjerstad, Grimstad, Iveland, Lillesand, Risør, Tvedestrand, Valle and Vegårshei in the county of Agder.

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

Aust-Agder currently elects three 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 2005 parliamentary election held on 11 and 12 September 2005:[21][22] The following candidates were elected:[23] Torbjørn Andersen (FrP); Freddy de Ruiter (Ap); Åse Gunhild Woie Duesund (KrF); and Inger Løite (Ap).

Results of the 1997 parliamentary election held on 15 September 1997:[25][26][27] The following candidates were elected:[28] Torbjørn Andersen (FrP); Åse Gunhild Woie Duesund (KrF); Gunnar Halvorsen (Ap); and Liv Marit Moland (Ap).

[88] The following candidates were elected:[88] Julius Grasåsen (Bp); Torvald Haavardstad (Ap); Jacob Maurice Ørbæk (H); and Christian Stray (V).

[90] The following candidates were elected:[90] Torvald Haavardstad (Ap); Nils Nersten (Bp); Jacob Maurice Ørbæk (H); and Christian Stray (V).