Asturias—Oviedo until 1986—is one of the 52 constituencies represented in the Congress of Deputies, the lower chamber of the Spanish parliament, the . The constituency (whose boundaries correspond to those of the homonymous province) currently elects eight deputies. The electoral system uses the D'Hondt method and closed-list proportional voting, with a minimum threshold of three percent.

Electoral system The constituency was created as per the Political Reform Law and was first contested in the 1977 general election. The Law provided for the provinces of Spain to be established as multi-member districts in the Congress of Deputies,. with this regulation being maintained under the Spanish Constitution of 1978.. Additionally, the Constitution requires for any modification of the provincial limits to be approved under an organic law, needing an absolute majority in the Cortes Generales..

Voting is based on universal suffrage, comprising all Spanish nationals over 18 years of age with full political rights, provided that they have not been deprived of the right to vote by a final sentence.. The only exception was in 1977, when this was limited to nationals over 21 years of age and in full enjoyment of their political and civil rights.; . Amendments in 2011 required non-resident citizens to apply for voting, a system known as "begged" voting ().. which was abolished in 2022. Further, amendments in 2018 granted the right to vote to those legally incapacitated. The Congress of Deputies has a minimum of 300 and a maximum of 400 seats, with electoral provisions fixing its size at 350. Of these, 348 are elected in 50 multi-member constituencies corresponding to the provinces of Spain—each of which is assigned an initial minimum of two seats and the remaining 248 distributed in proportion to population—using the D'Hondt method and closed-list proportional voting, with a three percent-threshold of valid votes (including blank ballots) in each constituency. The remaining two seats are allocated to Ceuta and Melilla as single-member districts elected by plurality voting.; ; ; . The use of this electoral method may result in a higher effective threshold depending on district magnitude and vote distribution. The law does not provide for by-elections to fill vacant seats; instead, any vacancies arising after the proclamation of candidates and during the legislative term are filled by the next candidates on the party lists or, when required, by designated substitutes.; .

The electoral law allows for parties and federations registered in the interior ministry, alliances and groupings of electors to present lists of candidates. Parties and federations intending to form an alliance are required to inform the relevant electoral commission within 10 days of the election call—15 before 1985—whereas groupings of electors need to secure the signature of at least one percent of the electorate in the constituencies for which they seek election—one permille of the electorate, with a compulsory minimum of 500 signatures, until 1985—disallowing electors from signing for more than one list. Also since 2011, parties, federations or alliances that have not obtained a mandate in either chamber of the at the preceding election are required to secure the signature of at least 0.1 percent of electors in the aforementioned constituencies.; . Amendments in 2007 required a balanced composition of men and women in the electoral lists, so that candidates of either sex made up at least 40 percent of the total composition; further amendments in 2024 required the use of a zipper system..

Deputies Deputies 1977–present Legislature Election Distribution Constituent 1977 1 4 4 1 1st 1979 1 4 4 1 2nd 1982 1 6 3 3rd 1986 1 5 1 2 4th 1989 1 4 1 3 5th 1993 1 4 4 6th 1996 1 4 4 7th 2000 1 3 5 8th 2004 4 4 9th 2008 4 4 10th 2011 1 3 3 1 11th 2015 2 2 1 3 12th 2016 2 2 1 3 13th 2019 (Apr) 1 3 1 1 1 14th 2019 (Nov) 1 3 2 1 15th 2023 1 2 3 1

General elections 2023 + Summary of the 23 July 2023 Congress of Deputies election results in Asturias Parties and alliances Popular vote Seats Votes % ±pp Total +/− People's Party (PP) 212,816 35.65 +12.43 3 +1 Spanish Socialist Workers' Party (PSOE) 205,049 34.34 +1.07 2 –1 Unite (Sumar)1 88,630 14.85 –3.37 1 ±0 Vox (Vox) 74,571 12.49 –3.37 1 ±0 Animalist Party with the Environment (PACMA)2 3,167 0.53 –0.26 0 ±0 Asturias Exists–Empty Spain (Asturias Existe EV) 2,314 0.39 New 0 ±0 Communist Party of the Workers of Spain (PCTE) 1,598 0.27 +0.12 0 ±0 Workers' Front (FO) 1,176 0.20 New 0 ±0 For a Fairer World (PUM+J) 773 0.13 +0.04 0 ±0 Zero Cuts (Recortes Cero) 590 0.10 –0.03 0 ±0 State of Spain Unionist Party (PUEDE) 269 0.05 New 0 ±0 Blank ballots 6,079 1.02 –0.24 Total 597,032 7 ±0 Valid votes 597,032 98.98 –0.05 Invalid votes 6,151 1.02 +0.05 Votes cast / turnout 603,183 62.90 +4.78 Abstentions 355,840 37.10 –4.78 Registered voters 959,023 Sources

November 2019 + Summary of the 10 November 2019 Congress of Deputies election results in Asturias Parties and alliances Popular vote Seats Votes % ±pp Total +/− Spanish Socialist Workers' Party (PSOE) 186,211 33.27 +0.14 3 ±0 People's Party–Forum (PP–Foro) 129,945 23.22 +5.32 2 +1 United We Can (Podemos–IX) 89,301 15.95 –1.19 1 ±0 Vox (Vox) 88,788 15.86 +4.37 1 ±0 Citizens–Party of the Citizenry (Cs) 37,374 6.68 –10.03 0 –1 More Country–Equo (Más País–Equo) 12,732 2.27 New 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA) 4,412 0.79 –0.27 0 ±0 Andecha Astur (Andecha) 887 0.16 +0.01 0 ±0 Communist Party of the Workers of Spain (PCTE) 843 0.15 –0.07 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 732 0.13 –0.05 0 ±0 Communist Party of the Peoples of Spain (PCPE) 626 0.11 New 0 ±0 For a Fairer World (PUM+J) 487 0.09 –0.03 0 ±0 Humanist Party (PH) 366 0.07 –0.01 0 ±0 Blank ballots 7,041 1.26 +0.17 Total 559,745 7 ±0 Valid votes 559,745 99.03 +0.13 Invalid votes 5,486 0.97 –0.13 Votes cast / turnout 565,231 58.12 –6.90 Abstentions 407,349 41.88 +6.90 Registered voters 972,580 Sources

April 2019 + Summary of the 28 April 2019 Congress of Deputies election results in Asturias Parties and alliances Popular vote Seats Votes % ±pp Total +/− Spanish Socialist Workers' Party (PSOE) 207,586 33.13 +8.26 3 +1 People's Party–Forum (PP–Foro) 112,180 17.90 –17.35 1 –2 United We Can (Podemos–IX–Equo) 107,426 17.14 –6.71 1 –1 Citizens–Party of the Citizenry (Cs) 104,688 16.71 +4.11 1 ±0 Vox (Vox) 72,018 11.49 +11.25 1 +1 Animalist Party Against Mistreatment of Animals (PACMA) 6,670 1.06 –0.02 0 ±0 Act (PACT) 4,554 0.73 New 0 ±0 Communist Party of the Workers of Spain (PCTE) 1,359 0.22 New 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 1,133 0.18 ±0.00 0 ±0 Andecha Astur (Andecha Astur) 932 0.15 New 0 ±0 For a Fairer World (PUM+J) 777 0.12 New 0 ±0 Humanist Party (PH) 480 0.08 +0.01 0 ±0 Blank ballots 6,858 1.09 +0.19 Total 626,661 7 –1 Valid votes 626,661 98.90 –0.14 Invalid votes 6,940 1.10 +0.14 Votes cast / turnout 633,601 65.02 +3.93 Abstentions 340,890 34.98 –3.93 Registered voters 974,491 Sources

2016 + Summary of the 26 June 2016 Congress of Deputies election results in Asturias Parties and alliances Popular vote Seats Votes % ±pp Total +/− People's Party–Forum (PP–Foro) 209,632 35.25 +5.14 3 ±0 Spanish Socialist Workers' Party (PSOE) 147,920 24.87 +1.58 2 ±0 United We Can (Podemos–IU–Equo–IAS–CLI–AS)1 141,845 23.85 –5.94 2 ±0 Citizens–Party of the Citizenry (C's) 74,961 12.60 –0.96 1 ±0 Animalist Party Against Mistreatment of Animals (PACMA) 6,398 1.08 +0.35 0 ±0 Blank Seats (EB) 2,517 0.42 +0.12 0 ±0 Vox (Vox) 1,442 0.24 –0.04 0 ±0 Union, Progress and Democracy (UPyD) 1,391 0.23 –0.39 0 ±0 Communist Party of the Peoples of Spain (PCPE) 1,383 0.23 +0.03 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 1,086 0.18 +0.01 0 ±0 Humanist Party (PH) 414 0.07 +0.01 0 ±0 State of Spain Unionist Party (PUEDE) 336 0.06 New 0 ±0 Blank ballots 5,374 0.90 ±0.00 Total 594,699 8 ±0 Valid votes 594,699 99.04 –0.13 Invalid votes 5,764 0.96 +0.13 Votes cast / turnout 600,463 61.09 –2.68 Abstentions 382,374 38.91 +2.68 Registered voters 982,837 Sources

2015 + Summary of the 20 December 2015 Congress of Deputies election results in Asturias Parties and alliances Popular vote Seats Votes % ±pp Total +/− People's Party–Forum (PP–Foro)1 187,568 30.11 –19.97 3 –1 Spanish Socialist Workers' Party (PSOE) 145,113 23.29 –6.05 2 –1 We Can (Podemos) 132,984 21.35 New 2 +2 Citizens–Party of the Citizenry (C's) 84,464 13.56 New 1 +1 United Left–Popular Unity in Common–Asturian Left (IU–UPeC–IAS) 52,583 8.44 –4.80 0 –1 Animalist Party Against Mistreatment of Animals (PACMA) 4,555 0.73 +0.39 0 ±0 Union, Progress and Democracy (UPyD) 3,855 0.62 –3.29 0 ±0 Blank Seats (EB) 1,869 0.30 –0.10 0 ±0 Vox (Vox) 1,715 0.28 New 0 ±0 Communist Party of the Peoples of Spain (PCPE) 1,240 0.20 +0.01 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 1,038 0.17 New 0 ±0 Humanist Party (PH) 392 0.06 +0.02 0 ±0 Blank ballots 5,591 0.90 –0.43 Total 622,967 8 ±0 Valid votes 622,967 99.17 +0.14 Invalid votes 5,233 0.83 –0.14 Votes cast / turnout 628,200 63.77 –0.80 Abstentions 356,887 36.23 +0.80 Registered voters 985,087 Sources

2011 + Summary of the 20 November 2011 Congress of Deputies election results in Asturias Parties and alliances Popular vote Seats Votes % ±pp Total +/− People's Party (PP) 223,906 35.40 –6.18 3 –1 Spanish Socialist Workers' Party (PSOE) 185,526 29.34 –17.59 3 –1 Forum of Citizens (FAC) 92,828 14.68 New 1 +1 United Left of Asturias: Plural Left (IU/IX) 83,755 13.24 +6.06 1 +1 Union, Progress and Democracy (UPyD) 24,721 3.91 +2.55 0 ±0 Equo (Equo) 4,033 0.64 New 0 ±0 Blank Seats (EB) 2,532 0.40 New 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA) 2,125 0.34 +0.17 0 ±0 Communist Party of the Peoples of Spain (PCPE) 1,202 0.19 +0.05 0 ±0 Andecha Astur (Andecha) 1,087 0.17 –0.02 0 ±0 Hartos.org (Hartos.org) 867 0.14 New 0 ±0 For a Fairer World (PUM+J) 383 0.06 ±0.00 0 ±0 Democratic and Constitutional Party (PDyC) 304 0.05 New 0 ±0 Humanist Party (PH) 284 0.04 +0.02 0 ±0 Internationalist Solidarity and Self-Management (SAIn) 282 0.04 ±0.00 0 ±0 Communist Unification of Spain (UCE) 209 0.03 New 0 ±0 Blank ballots 8,392 1.33 +0.09 Total 632,436 8 ±0 Valid votes 632,436 99.03 –0.32 Invalid votes 6,193 0.97 +0.32 Votes cast / turnout 638,629 64.57 –6.72 Abstentions 350,416 35.43 +6.72 Registered voters 989,045 Sources

2008