Huelva 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 five 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 2 3 1st 1979 2 3 2nd 1982 4 1 3rd 1986 4 1 4th 1989 4 1 5th 1993 3 2 6th 1996 3 2 7th 2000 3 2 8th 2004 3 2 9th 2008 3 2 10th 2011 2 3 11th 2015 1 2 2 12th 2016 1 2 2 13th 2019 (Apr) 1 2 1 1 14th 2019 (Nov) 3 1 1 15th 2023 2 2 1

General elections 2023 + Summary of the 23 July 2023 Congress of Deputies election results in Huelva Parties and alliances Popular vote Seats Votes % ±pp Total +/− People's Party (PP) 93,565 36.43 +16.70 2 +1 Spanish Socialist Workers' Party (PSOE) 92,326 35.95 –0.61 2 –1 Vox (Vox) 37,572 14.63 –6.31 1 ±0 Unite Andalusia (Sumar)1 26,752 10.42 –1.70 0 ±0 For Huelva (XH) 1,931 0.75 New 0 ±0 Animalist Party with the Environment (PACMA)2 1,663 0.65 –0.36 0 ±0 For a Fairer World (PUM+J) 368 0.14 ±0.00 0 ±0 Zero Cuts (Recortes Cero) 217 0.08 –0.12 0 ±0 Blank ballots 2,410 0.94 –0.39 Total 256,804 5 ±0 Valid votes 256,804 98.44 +0.26 Invalid votes 4,057 1.56 –0.26 Votes cast / turnout 260,861 64.81 +0.82 Abstentions 141,643 35.19 –0.82 Registered voters 402,504 Sources

November 2019 + Summary of the 10 November 2019 Congress of Deputies election results in Huelva Parties and alliances Popular vote Seats Votes % ±pp Total +/− Spanish Socialist Workers' Party (PSOE) 91,656 36.56 –0.39 3 +1 Vox (Vox) 52,485 20.94 +8.12 1 +1 People's Party (PP) 49,452 19.73 +2.76 1 ±0 United We Can (Podemos–IULV–CA) 30,389 12.12 –0.88 0 –1 Citizens–Party of the Citizenry (Cs) 18,382 7.33 –9.62 0 –1 Animalist Party Against Mistreatment of Animals (PACMA) 2,535 1.01 –0.19 0 ±0 Andalusia by Herself (AxSí) 856 0.34 +0.02 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 495 0.20 –0.04 0 ±0 Spanish Communist Workers' Party (PCOE) 464 0.19 –0.14 0 ±0 For a Fairer World (PUM+J) 351 0.14 New 0 ±0 Communist Party of the Andalusian People (PCPA) 159 0.06 –0.04 0 ±0 Communist Party of the Workers of Spain (PCTE) 112 0.04 New 0 ±0 Blank ballots 3,345 1.33 +0.23 Total 250,681 5 ±0 Valid votes 250,681 98.18 –0.17 Invalid votes 4,648 1.82 +0.17 Votes cast / turnout 255,329 63.99 –3.67 Abstentions 143,690 36.01 +3.67 Registered voters 399,019 Sources

April 2019 + Summary of the 28 April 2019 Congress of Deputies election results in Huelva Parties and alliances Popular vote Seats Votes % ±pp Total +/− Spanish Socialist Workers' Party (PSOE) 97,766 36.95 +1.11 2 ±0 People's Party (PP) 44,909 16.97 –16.37 1 –1 Citizens–Party of the Citizenry (Cs) 44,842 16.95 +5.28 1 +1 United We Can (Podemos–IULV–CA–Equo) 34,396 13.00 –3.28 1 ±0 Vox (Vox) 33,920 12.82 +12.66 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA) 3,182 1.20 +0.04 0 ±0 Spanish Communist Workers' Party (PCOE) 871 0.33 New 0 ±0 Andalusia by Herself (AxSí) 856 0.32 New 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 646 0.24 +0.05 0 ±0 Communist Party of the Andalusian People (PCPA) 272 0.10 –0.04 0 ±0 Blank ballots 2,909 1.10 +0.07 Total 264,569 5 ±0 Valid votes 264,569 98.35 –0.27 Invalid votes 4,430 1.65 +0.27 Votes cast / turnout 268,999 67.66 +4.73 Abstentions 128,593 32.34 –4.73 Registered voters 397,592 Sources

2016 + Summary of the 26 June 2016 Congress of Deputies election results in Huelva Parties and alliances Popular vote Seats Votes % ±pp Total +/− Spanish Socialist Workers' Party (PSOE) 88,100 35.84 –1.07 2 ±0 People's Party (PP) 81,959 33.34 +4.64 2 ±0 United We Can for Andalusia (Podemos–IU–Equo)1 40,023 16.28 –3.49 1 ±0 Citizens–Party of the Citizenry (C's) 28,685 11.67 –0.21 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA) 2,850 1.16 +0.24 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 470 0.19 +0.06 0 ±0 Union, Progress and Democracy (UPyD) 464 0.19 –0.20 0 ±0 Vox (Vox) 398 0.16 –0.02 0 ±0 Communist Party of the Peoples of Spain (PCPE) 344 0.14 +0.02 0 ±0 Blank ballots 2,526 1.03 +0.10 Total 245,819 5 ±0 Valid votes 245,819 98.62 –0.21 Invalid votes 3,450 1.38 +0.21 Votes cast / turnout 249,269 62.93 –3.20 Abstentions 146,848 37.07 +3.20 Registered voters 396,117 Sources

2015 + Summary of the 20 December 2015 Congress of Deputies election results in Huelva Parties and alliances Popular vote Seats Votes % ±pp Total +/− Spanish Socialist Workers' Party (PSOE) 95,637 36.91 –3.63 2 ±0 People's Party (PP) 74,353 28.70 –15.19 2 –1 We Can (Podemos) 39,435 15.22 New 1 +1 Citizens–Party of the Citizenry (C's) 30,776 11.88 New 0 ±0 United Left/Greens–Assembly for Andalusia–Popular Unity (IULV–CA–UPeC) 11,786 4.55 –2.48 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA) 2,385 0.92 +0.61 0 ±0 Union, Progress and Democracy (UPyD) 1,014 0.39 –3.04 0 ±0 Vox (Vox) 460 0.18 New 0 ±0 Zero Cuts–Green Group (Recortes Cero–GV) 336 0.13 New 0 ±0 Communist Party of the Peoples of Spain (PCPE) 307 0.12 –0.05 0 ±0 National Democracy (DN) 192 0.07 –0.04 0 ±0 Blank ballots 2,409 0.93 –0.36 Total 259,090 5 ±0 Valid votes 259,090 98.83 +0.06 Invalid votes 3,061 1.17 –0.06 Votes cast / turnout 262,151 66.13 –1.80 Abstentions 134,264 33.87 +1.80 Registered voters 396,415 Sources

2011 + Summary of the 20 November 2011 Congress of Deputies election results in Huelva Parties and alliances Popular vote Seats Votes % ±pp Total +/− People's Party (PP) 115,651 43.89 +8.89 3 +1 Spanish Socialist Workers' Party (PSOE) 106,835 40.54 –15.13 2 –1 United Left/The Greens–Assembly for Andalusia: Plural Left (IULV–CA) 18,532 7.03 +2.11 0 ±0 Union, Progress and Democracy (UPyD) 9,048 3.43 +2.57 0 ±0 Andalusian Party (PA)1 4,992 1.89 +0.36 0 ±0 Equo (Equo) 2,001 0.76 New 0 ±0 Blank Seats (EB) 917 0.35 New 0 ±0 Animalist Party Against Mistreatment of Animals (PACMA) 821 0.31 +0.18 0 ±0 Communist Party of the Peoples of Spain (PCPE) 444 0.17 +0.09 0 ±0 For a Fairer World (PUM+J) 309 0.12 +0.04 0 ±0 National Democracy (DN) 296 0.11 +0.04 0 ±0 Republicans (RPS) 249 0.09 New 0 ±0 Blank ballots 3,412 1.29 +0.32 Total 263,507 5 ±0 Valid votes 263,507 98.77 –0.56 Invalid votes 3,281 1.23 +0.56 Votes cast / turnout 266,788 67.93 –1.98 Abstentions 125,967 32.07 +1.98 Registered voters 392,755 Sources

2008 + Summary of the 9 March 2008 Congress of Deputies election results in Huelva Parties and alliances Popular vote Seats Votes % ±pp Total +/− Spanish Socialist Workers' Party (PSOE) 149,494 55.67 –0.52 3 ±0 People's Party (PP) 93,984 35.00 +4.41 2 ±0 United Left/The Greens–Assembly for Andalusia–Alternative (IULV–CA) 13,210 4.92 –0.57 0 ±0 Andalusian Coalition (CA)1 4,110 1.53 –4.14 0 ±0 Union, Progress and Democracy (UPyD) 2,319 0.86 New 0 ±0 The Greens (Verdes) 721 0.27 New 0 ±0 Social Democratic Party (PSD) 433 0.16 New 0 ±0 Anti-Bullfighting Party Against Mistreatment of Animals (PACMA) 350 0.13 New 0 ±0 For a Fairer World (PUM+J) 210 0.08 New 0 ±0 Communist Party of the Peoples of Spain (PCPE) 207 0.08 +0.08 0 ±0 National Democracy (DN) 200 0.07 +0.03 0 ±0 Citizens–Party of the Citizenry (C's) 167 0.06 New 0 ±0 Family and Life Party (PFyV) 121 0.05 New 0 ±0 Spanish Phalanx of the CNSO (FE de las JONS) 113 0.04 +0.01 0 ±0 Humanist Party (PH) 109 0.04 –0.03 0 ±0 Spain 2000 (E–2000) 99 0.04 New 0 ±0 Spanish Alternative (AES) 81 0.03 New 0 ±0 Blank ballots 2,603 0.97 –0.49 Total 268,531 5 ±0 Valid votes 268,531 99.33 +0.02 Invalid votes 1,804 0.67 –0.02 Votes cast / turnout 270,335 69.91 –3.29 Abstentions 116,337 30.09 +3.29 Registered voters 386,672 Sources

2004