Aust-Agder () is one of the 19 multi-member constituencies of the Storting, the national legislature of Norway. The constituency was established in 1921 following the introduction of proportional representation for elections to the Storting. 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. At the 2025 parliamentary election it had 91,325 registered electors.

Electoral system Aust-Agder currently elects three of the 169 members of the Storting using the open party-list proportional representation electoral system. Constituency seats are allocated by the County Electoral Committee using the Modified Sainte-Laguë method. Compensatory seats (seats at large or levelling seats) are calculated based on the national vote and are allocated by the National Electoral Committee using the Modified Sainte-Laguë method at the constituency level (one for each constituency). Only parties that reach the 4% national threshold compete for compensatory seats.

Election results Summary Election CommunistsK RedsR / RV / FMS Socialist LeftSV / SF LabourAp GreensMDG CentreSp / Bp / L LiberalsV ChristianDemocratsKrF ConservativesH ProgressFrP / ALP colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 colspan=3 Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats Votes % Seats2025 3,305 4.59% 0 2,811 3.91% 0 19,346 26.89% 1 2,432 3.38% 0 3,655 5.08% 0 1,855 2.58% 0 5,824 8.09% 0 9,375 13.03% 1 20,001 27.80% 12021 2,456 3.73% 0 3,644 5.54% 0 16,147 24.53% 1 1,976 3.00% 0 8,907 13.53% 1 2,136 3.24% 0 5,749 8.73% 0 13,305 20.21% 1 8,728 13.26% 02017 807 1.25% 0 2,562 3.96% 0 16,481 25.44% 1 1,676 2.59% 0 5,385 8.31% 0 2,121 3.27% 0 6,352 9.81% 0 16,614 25.65% 1 11,195 17.28% 12013 345 0.55% 0 1,652 2.63% 0 17,623 28.02% 1 1,242 1.97% 0 2,815 4.48% 0 3,033 4.82% 0 7,019 11.16% 0 16,303 25.92% 1 11,278 17.93% 12009 377 0.63% 0 2,588 4.34% 0 19,377 32.50% 1 148 0.25% 0 2,609 4.38% 0 2,054 3.44% 0 6,663 11.18% 0 9,721 16.30% 1 15,538 26.06% 12005 269 0.46% 0 4,560 7.78% 0 16,987 28.98% 2 3,093 5.28% 0 3,158 5.39% 0 7,452 12.71% 0 7,436 12.69% 0 14,641 24.98% 12001 25 0.04% 0 255 0.46% 0 6,215 11.10% 0 11,083 19.80% 1 2,340 4.18% 0 2,188 3.91% 0 11,459 20.47% 1 11,724 20.95% 1 9,273 16.57% 11997 36 0.06% 0 421 0.73% 0 2,515 4.36% 0 17,568 30.44% 2 104 0.18% 0 4,718 8.17% 0 2,697 4.67% 0 11,963 20.73% 1 7,651 13.26% 0 9,836 17.04% 11993 122 0.22% 0 3,886 7.05% 0 18,244 33.08% 2 9,764 17.71% 1 2,162 3.92% 0 7,621 13.82% 0 8,245 14.95% 1 3,326 6.03% 01989 199 0.34% 0 3,870 6.53% 0 18,608 31.40% 1 201 0.34% 0 3,283 5.54% 0 2,600 4.39% 0 9,503 16.04% 1 11,111 18.75% 1 9,714 16.39% 11985 45 0.08% 0 106 0.19% 0 1,441 2.52% 0 22,719 39.71% 2 3,297 5.76% 0 2,054 3.59% 0 8,381 14.65% 1 16,734 29.25% 1 2,080 3.64% 01981 50 0.09% 0 114 0.21% 0 1,236 2.29% 0 18,519 34.36% 2 2,879 5.34% 0 2,111 3.92% 0 8,938 16.58% 1 17,195 31.90% 1 2,571 4.77% 01977 60 0.12% 0 81 0.17% 0 965 1.99% 0 19,037 39.20% 2 16,080 33.11% 1 10,606 21.84% 1 1,613 3.32% 01973 70 0.16% 0 2,391 5.42% 0 14,594 33.06% 2 6,296 14.26% 0 8,254 18.70% 1 6,876 15.58% 1 2,044 4.63% 01969 126 0.28% 0 611 1.38% 0 19,047 43.01% 2 4,077 9.21% 0 7,202 16.26% 1 5,697 12.86% 0 7,529 17.00% 1 1965 119 0.28% 0 1,337 3.16% 0 17,556 41.55% 2 2,994 7.09% 0 6,748 15.97% 1 6,214 14.71% 0 7,285 17.24% 1 1961 324 0.85% 0 16,801 43.82% 2 7,719 20.13% 1 6,433 16.78% 0 7,066 18.43% 1 1957 363 0.95% 0 16,813 43.91% 2 3,565 9.31% 0 5,555 14.51% 0 5,802 15.15% 1 6,188 16.16% 1 1953 525 1.33% 0 17,305 43.76% 2 5,560 14.06% 0 6,491 16.42% 1 9,661 24.43% 1 1949 394 1.25% 0 13,371 42.56% 3 4,008 12.76% 0 7,028 22.37% 1 2,649 8.43% 0 3,967 12.63% 0 1945 1,053 3.87% 0 11,683 42.97% 2 3,439 12.65% 0 7,082 26.05% 1 3,923 14.43% 1 1936 9,582 33.92% 1 4,605 16.30% 1 7,819 27.68% 1 5,674 20.09% 1 1933 8,323 33.69% 1 3,887 15.73% 1 4,787 19.38% 1 4,390 17.77% 1 1930 6,418 26.90% 1 5,140 21.55% 1 7,022 29.44% 1 5,275 22.11% 1 1927 6,436 33.88% 1 3,771 19.85% 1 4,756 25.04% 1 4,033 21.23% 1 1924 115 0.64% 0 3,120 17.45% 1 3,325 18.60% 1 5,731 32.05% 1 4,708 26.33% 1 1921 2,250 12.24% 0 3,679 20.01% 1 5,393 29.33% 2 5,146 27.99% 1 (Excludes compensatory seats. Figures in italics represent joint lists.)

Detailed 2020s 2025 Results of the 2025 parliamentary election held on 8 September 2025:

Party Votes per municipality Totalvotes % SeatsÅmli Arendal Birke-nes Bygland Bykle Evje ogHornnes Froland Gjer-stad Grim-stad Iveland Lille-sand Risør Tvede-strand Valle Vegår-shei Progress Party FrP 237 7,588 965 126 123 595 1,276 424 3,937 242 1,837 974 1,133 221 323 20,001 27.80% 1 0 1 Labour Party Ap 308 8,243 567 158 143 549 861 414 3,411 118 1,649 1,401 1,027 152 345 19,346 26.89% 1 0 1 Conservative Party H 52 3,815 327 66 79 207 246 149 2,002 40 1,097 624 516 66 89 9,375 13.03% 1 0 1 Christian Democratic Party KrF 69 1,436 400 59 35 271 374 74 1,678 125 638 143 248 50 224 5,824 8.09% 0 1 1 Centre Party Sp 174 759 291 183 79 223 227 187 518 125 188 176 207 154 164 3,655 5.08% 0 0 0 Red Party R 67 1,320 118 32 33 83 129 80 590 27 335 224 193 23 51 3,305 4.59% 0 0 0 Socialist Left Party SV 28 1,275 70 21 24 54 82 28 598 13 322 129 125 11 31 2,811 3.91% 0 0 0 Green Party MDG 10 994 67 13 19 29 67 30 602 12 305 138 119 12 15 2,432 3.38% 0 0 0 Liberal Party V 15 719 48 13 18 32 41 17 445 10 253 115 104 9 16 1,855 2.58% 0 0 0 Conservative K 30 250 54 19 8 39 132 5 186 26 68 10 22 10 20 879 1.22% 0 0 0 Pensioners' Party PP 5 213 19 7 2 13 26 9 82 6 94 24 27 7 6 540 0.75% 0 0 0 Industry and Business Party INP 13 155 46 4 3 11 51 11 118 9 29 22 26 5 13 516 0.72% 0 0 0 Generation Party GP 9 150 33 6 6 22 25 10 81 13 53 24 31 5 14 482 0.67% 0 0 0 Norway Democrats ND 14 180 6 5 5 18 31 10 71 11 32 32 31 7 14 467 0.65% 0 0 0 Peace and Justice FOR 2 58 3 2 1 5 7 3 30 2 13 10 10 3 2 151 0.21% 0 0 0 DNI Party DNI 1 62 6 2 2 1 12 3 20 4 6 7 7 2 3 138 0.19% 0 0 0 Center Party PS 1 24 3 2 1 2 5 3 22 0 13 3 11 1 2 93 0.13% 0 0 0 Welfare and Innovation Party VIP 1 35 3 1 2 4 3 1 15 3 11 5 3 1 0 88 0.12% 0 0 0Valid votes 1,036 27,276 3,026 719 583 2,158 3,595 1,458 14,406 786 6,943 4,061 3,840 739 1,332 71,958 100.00% 3 1 4Blank votes 11 158 24 2 4 22 29 9 128 10 49 28 22 5 6 507 0.70% Rejected votes – other 2 83 7 0 1 9 8 0 17 3 1 7 0 0 2 140 0.19% Total polled 1,049 27,517 3,057 721 588 2,189 3,632 1,467 14,551 799 6,993 4,096 3,862 744 1,340 72,605 79.50% Registered electors 1,316 34,865 3,852 892 693 2,770 4,609 1,919 18,219 952 8,649 5,171 4,881 924 1,613 91,325 Turnout 79.71% 78.92% 79.36% 80.83% 84.85% 79.03% 78.80% 76.45% 79.87% 83.93% 80.85% 79.21% 79.12% 80.52% 83.08% 79.50%

The following candidates were elected: Constituency seats - Tellef Inge Mørland (Ap); Marius Arion Nilsen (FrP); and Haagen Poppe (H). Compensatory seat - Jorunn Gleditsch Lossius (KrF).

2021 Results of the 2021 parliamentary election held on 13 September 2021:

Party Votes per municipality Totalvotes % SeatsÅmli Arendal Birke-nes Bygland Bykle Evje ogHornnes Froland Gjer-stad Grim-stad Iveland Lille-sand Risør Tvede-strand Valle Vegår-shei Labour Party Ap 279 6,970 479 147 99 464 690 345 2,730 90 1,336 1,188 869 134 327 16,147 24.53% 1 0 1 Conservative Party H 78 5,172 532 89 96 271 351 217 2,861 74 1,626 837 832 105 164 13,305 20.21% 1 0 1 Centre Party Sp 313 2,492 655 222 131 410 732 368 1,281 218 528 456 559 207 335 8,907 13.53% 1 0 1 Progress Party FrP 112 3,718 315 70 39 242 617 171 1,545 101 698 491 383 94 132 8,728 13.26% 0 1 1 Christian Democratic Party KrF 70 1,399 394 55 39 311 365 80 1,637 136 647 172 174 74 196 5,749 8.73% 0 0 0 Socialist Left Party SV 41 1,635 76 35 35 85 90 47 729 15 431 187 175 24 39 3,644 5.54% 0 0 0 Red Party R 53 1,016 65 35 17 46 90 52 429 23 240 203 137 17 33 2,456 3.73% 0 0 0 Liberal Party V 20 826 60 9 25 33 48 21 494 11 302 135 127 12 13 2,136 3.24% 0 0 0 Green Party MDG 9 765 62 6 16 26 49 16 514 10 243 127 105 11 17 1,976 3.00% 0 0 0 Democrats in Norway 16 330 55 12 9 41 66 16 156 22 78 41 52 9 14 917 1.39% 0 0 0 The Christians PDK 4 177 37 7 4 14 87 6 131 14 43 22 13 2 12 573 0.87% 0 0 0 Pensioners' Party PP 3 185 9 0 0 5 8 5 46 4 78 21 12 2 2 380 0.58% 0 0 0 Industry and Business Party INP 10 78 21 6 1 6 29 7 48 7 18 23 19 3 3 279 0.42% 0 0 0 Center Party 2 62 17 2 0 5 9 4 60 2 52 6 6 0 3 230 0.35% 0 0 0 Health Party 0 110 4 1 0 3 8 0 34 0 11 6 11 0 2 190 0.29% 0 0 0 Capitalist Party 2 36 1 0 0 5 7 2 27 1 12 4 3 0 2 102 0.15% 0 0 0 Pirate Party of Norway 1 26 6 1 1 3 1 1 14 0 8 4 4 0 1 71 0.11% 0 0 0 Alliance - Alternative for Norway 0 21 0 1 0 1 1 1 7 0 4 6 2 0 1 45 0.07% 0 0 0Valid votes 1,013 25,018 2,788 698 512 1,971 3,248 1,359 12,743 728 6,355 3,929 3,483 694 1,296 65,835 100.00% 3 1 4Blank votes 3 132 16 4 2 11 19 10 76 5 37 15 6 2 4 342 0.52% Rejected votes – other 0 40 8 0 1 0 3 3 4 4 5 2 0 0 0 70 0.11% Total polled 1,016 25,190 2,812 702 515 1,982 3,270 1,372 12,823 737 6,397 3,946 3,489 696 1,300 66,247 75.88% Registered electors 1,321 33,383 3,715 899 661 2,645 4,407 1,865 16,974 926 8,183 5,235 4,609 915 1,562 87,300 Turnout 76.91% 75.46% 75.69% 78.09% 77.91% 74.93% 74.20% 73.57% 75.54% 79.59% 78.17% 75.38% 75.70% 76.07% 83.23% 75.88%

The following candidates were elected: Constituency seats - Svein Harberg (H); Tellef Inge Mørland (Ap); and Gro-Anita Mykjåland (Sp). Compensatory seat - Marius Arion Nilsen (FrP).

2010s 2017 Results of the 2017 parliamentary election held on 11 September 2017:

Party Votes per municipality Totalvotes % SeatsÅmli Arendal Birke-nes Bygland Bykle Evje ogHornnes Froland Gjer-stad Grim-stad Iveland Lille-sand Risør Tvede-strand Valle Vegår-shei Conservative Party H 166 6,413 653 125 116 339 559 288 3,351 116 2,111 1,023 993 123 238 16,614 25.65% 1 0 1 Labour Party Ap 327 7,231 518 172 110 467 690 385 2,558 111 1,279 1,290 877 136 330 16,481 25.44% 1 0 1 Progress Party FrP 156 4,488 476 93 72 308 698 240 2,239 147 861 635 520 117 145 11,195 17.28% 1 0 1 Christian Democratic Party KrF 99 1,681 443 79 45 374 437 94 1,623 152 530 243 258 61 233 6,352 9.81% 0 1 1 Centre Party Sp 217 1,396 346 188 103 266 397 295 781 148 264 272 357 161 194 5,385 8.31% 0 0 0 Socialist Left Party SV 31 1,149 68 19 27 55 78 36 472 16 287 174 113 12 25 2,562 3.96% 0 0 0 Liberal Party V 11 763 62 10 21 40 53 25 466 14 379 124 117 16 20 2,121 3.27% 0 0 0 Green Party MDG 6 640 41 13 18 25 39 19 418 13 186 130 106 10 12 1,676 2.59% 0 0 0 Red Party R 19 346 32 9 7 16 19 10 120 10 84 69 52 6 8 807 1.25% 0 0 0 The Christians PDK 6 156 25 8 4 13 60 5 107 15 21 17 17 12 4 470 0.73% 0 0 0 Pensioners' Party PP 8 214 11 5 1 9 11 5 56 0 79 20 33 0 1 453 0.70% 0 0 0 Health Party 2 144 4 1 3 3 17 6 33 0 22 5 7 0 2 249 0.38% 0 0 0 Capitalist Party 2 59 0 3 1 5 9 2 14 1 21 1 3 0 1 122 0.19% 0 0 0 Democrats in Norway 2 37 2 4 1 5 4 1 31 1 9 2 0 0 3 102 0.16% 0 0 0 Pirate Party of Norway 2 41 6 1 0 2 4 1 24 2 10 5 3 0 1 102 0.16% 0 0 0 The Alliance 2 29 2 0 0 3 4 1 11 1 1 5 2 0 0 61 0.09% 0 0 0 Coastal Party KP 1 12 1 0 0 1 2 2 2 0 3 0 0 0 0 24 0.04% 0 0 0Valid votes 1,057 24,799 2,690 730 529 1,931 3,081 1,415 12,306 747 6,147 4,015 3,458 654 1,217 64,776 100.00% 3 1 4Blank votes 4 128 14 3 5 13 20 7 59 7 28 25 9 3 8 333 0.51% Rejected votes – other 0 11 11 0 1 10 2 11 17 1 6 15 7 3 2 97 0.15% Total polled 1,061 24,938 2,715 733 535 1,954 3,103 1,433 12,382 755 6,181 4,055 3,474 660 1,227 65,206 77.23% Registered electors 1,332 32,534 3,605 934 668 2,587 4,119 1,865 15,968 933 7,707 5,275 4,498 910 1,491 84,426 Turnout 79.65% 76.65% 75.31% 78.48% 80.09% 75.53% 75.33% 76.84% 77.54% 80.92% 80.20% 76.87% 77.23% 72.53% 82.29% 77.23%

The following candidates were elected: