# Viana do Castelo (Assembly of the Republic constituency)

Viana do Castelo is one of the 22 multi-member constituencies of the Assembly of the Republic, the national legislature of Portugal. The constituency was established in 1976 when the Assembly of the Republic was established by the constitution following the restoration of democracy. It is conterminous with the district of Viana do Castelo. The constituency currently elects five of the 230 members of the Assembly of the Republic using the closed party-list proportional representation electoral system. At the 2024 legislative election it had 233,491 registered electors.

## Electoral system

Viana do Castelo currently elects five of the 230 members of the Assembly of the Republic using the closed party-list proportional representation electoral system. Seats are allocated using the D'Hondt method.

## Election results
### Summary

| Election | Unitary Democrats CDU / APU / PCP | Unitary Democrats CDU / APU / PCP | Unitary Democrats CDU / APU / PCP | Left Bloc BE / UDP | Left Bloc BE / UDP | Left Bloc BE / UDP | Socialists PS / FRS | Socialists PS / FRS | Socialists PS / FRS | People Animals Nature PAN | People Animals Nature PAN | People Animals Nature PAN | Democratic Renewal PRD | Democratic Renewal PRD | Democratic Renewal PRD | Social Democrats PSD / PàF / AD / PPD | Social Democrats PSD / PàF / AD / PPD | Social Democrats PSD / PàF / AD / PPD | Liberals IL | Liberals IL | Liberals IL | CDS – People's CDS–PP / CDS | CDS – People's CDS–PP / CDS | CDS – People's CDS–PP / CDS | Chega CH / PPV/CDC / PPV | Chega CH / PPV/CDC / PPV | Chega CH / PPV/CDC / PPV |
| Election | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats | Votes | % | Seats |
| 2024 | 3,106 | 2.24% | 0 | 4,926 | 3.55% | 0 | 40,237 | 29.01% | 2 | 2,057 | 1.48% | 0 | | | | 49,616 | 35.77% | 2 | 5,106 | 3.68% | 0 | | | | 26,639 | 19.21% | 1 |
| 2022 | 3,816 | 3.07% | 0 | 4,418 | 3.56% | 0 | 53,442 | 43.02% | 3 | 1,251 | 1.01% | 0 | | | | 43,418 | 34.95% | 3 | 3,652 | 2.94% | 0 | 4,273 | 3.44% | 0 | 7,702 | 6.20% | 0 |
| 2019 | 4,841 | 4.17% | 0 | 10,321 | 8.89% | 0 | 42,398 | 36.51% | 3 | 2,876 | 2.48% | 0 | | | | 41,210 | 35.49% | 3 | 692 | 0.60% | 0 | 7,577 | 6.53% | 0 | 858 | 0.74% | 0 |
| 2015 | 6,722 | 5.46% | 0 | 10,237 | 8.31% | 0 | 38,311 | 31.11% | 2 | 1,086 | 0.88% | 0 | | | | 58,515 | 47.52% | 4 | | | | | | | 396 | 0.32% | 0 |
| 2011 | 6,648 | 5.15% | 0 | 5,928 | 4.59% | 0 | 35,327 | 27.34% | 2 | 926 | 0.72% | 0 | | | | 58,826 | 45.53% | 3 | | | | 18,135 | 14.04% | 1 | 242 | 0.19% | 0 |
| 2009 | 5,934 | 4.32% | 0 | 12,099 | 8.80% | 0 | 51,306 | 37.32% | 3 | | | | | | | 44,327 | 32.24% | 2 | | | | 19,243 | 14.00% | 1 | 372 | 0.27% | 0 |
| 2005 | 5,632 | 4.06% | 0 | 6,415 | 4.63% | 0 | 59,676 | 43.06% | 3 | | | | | | | 47,645 | 34.38% | 2 | | | | 16,205 | 11.69% | 1 | | | |
| 2002 | 4,844 | 3.55% | 0 | 2,485 | 1.82% | 0 | 49,122 | 35.97% | 3 | | | | | | | 63,386 | 46.42% | 3 | | | | 14,283 | 10.46% | 0 | | | |
| 1999 | 6,886 | 5.11% | 0 | 1,689 | 1.25% | 0 | 55,149 | 40.95% | 3 | | | | | | | 49,081 | 36.44% | 2 | | | | 19,249 | 14.29% | 1 | | | |
| 1995 | 6,614 | 4.63% | 0 | 527 | 0.37% | 0 | 56,234 | 39.37% | 3 | | | | | | | 61,051 | 42.74% | 3 | | | | 16,328 | 11.43% | 0 | | | |
| 1991 | 6,923 | 5.04% | 0 | | | | 35,212 | 25.66% | 2 | | | | 1,500 | 1.09% | 0 | 79,408 | 57.87% | 4 | | | | 10,081 | 7.35% | 0 | | | |
| 1987 | 8,741 | 6.41% | 0 | 641 | 0.47% | 0 | 28,351 | 20.80% | 1 | | | | 6,758 | 4.96% | 0 | 76,207 | 55.92% | 5 | | | | 10,727 | 7.87% | 0 | | | |
| 1985 | 11,591 | 8.46% | 0 | 1,348 | 0.98% | 0 | 25,924 | 18.93% | 1 | | | | 22,904 | 16.72% | 1 | 47,253 | 34.50% | 3 | | | | 23,368 | 17.06% | 1 | | | |
| 1983 | 13,572 | 10.16% | 0 | 525 | 0.39% | 0 | 44,711 | 33.48% | 2 | | | | | | | 44,869 | 33.59% | 3 | | | | 25,291 | 18.94% | 1 | | | |
| 1980 | 14,548 | 10.27% | 0 | 996 | 0.70% | 0 | 33,245 | 23.47% | 1 | | | | | | | 86,186 | 60.84% | 5 | | | | | | | | | |
| 1979 | 14,266 | 10.23% | 0 | 1,312 | 0.94% | 0 | 36,186 | 25.94% | 2 | | | | | | | 79,702 | 57.14% | 4 | | | | | | | | | |
| 1976 | 8,611 | 7.07% | 0 | 1,110 | 0.91% | 0 | 33,094 | 27.16% | 2 | | | | | | | 42,519 | 34.90% | 3 | | | | 30,437 | 24.98% | 2 | | | |
(Figures in italics represent alliances.)

### Detailed
#### 2020s
##### 2024

Results of the 2024 legislative election held on 10 March 2024:
| Party | Party | Party | Votes | % | Seats |
| | Democratic Alliance | AD | 49,616 | 35.77% | 2 |
| | Socialist Party | PS | 40,237 | 29.01% | 2 |
| | Chega | CH | 26,639 | 19.21% | 1 |
| | Liberal Initiative | IL | 5,106 | 3.68% | 0 |
| | Left Bloc | BE | 4,926 | 3.55% | 0 |
| | Unitary Democratic Coalition | CDU | 3,106 | 2.24% | 0 |
| | LIVRE | L | 2,815 | 2.03% | 0 |
| | National Democratic Alternative | ADN | 2,263 | 1.63% | 0 |
| | People Animals Nature | PAN | 2,057 | 1.48% | 0 |
| | New Right | ND | 706 | 0.51% | 0 |
| | React, Include, Recycle | RIR | 624 | 0.45% | 0 |
| | Volt Portugal | Volt | 255 | 0.18% | 0 |
| | Alternative 21 (Earth Party and Alliance) | PT-A | 204 | 0.15% | 0 |
| | Ergue-te | E | 147 | 0.11% | 0 |
| Valid votes | Valid votes | Valid votes | 138,701 | 100.00% | 5 |
| Blank votes | Blank votes | Blank votes | 2,682 | 1.88% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,534 | 1.07% | |
| Total polled | Total polled | Total polled | 142,917 | 61.21% | |
| Registered electors | Registered electors | Registered electors | 233,491 | | |
The following candidates were elected: José Pedro Aguiar-Branco (AD); Emília Cerqueira (AD); José Costa (PS); Marina Gonçalves (PS); and Eduardo Teixeira (CH).

##### 2022

Results of the 2022 legislative election held on 30 January 2022:
| Party | Party | Party | Votes | % | Seats |
| | Socialist Party | PS | 53,442 | 43.02% | 3 |
| | Social Democratic Party | PSD | 43,418 | 34.95% | 3 |
| | Chega | CH | 7,702 | 6.20% | 0 |
| | Left Bloc | BE | 4,418 | 3.56% | 0 |
| | CDS – People's Party | CDS–PP | 4,273 | 3.44% | 0 |
| | Unitary Democratic Coalition | CDU | 3,816 | 3.07% | 0 |
| | Liberal Initiative | IL | 3,652 | 2.94% | 0 |
| | People Animals Nature | PAN | 1,251 | 1.01% | 0 |
| | LIVRE | L | 919 | 0.74% | 0 |
| | React, Include, Recycle | RIR | 556 | 0.45% | 0 |
| | Earth Party | PT | 190 | 0.15% | 0 |
| | Alliance | A | 173 | 0.14% | 0 |
| | Socialist Alternative Movement | MAS | 157 | 0.13% | 0 |
| | Ergue-te | E | 133 | 0.11% | 0 |
| | Volt Portugal | Volt | 130 | 0.10% | 0 |
| Valid votes | Valid votes | Valid votes | 124,230 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 1,654 | 1.30% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,156 | 0.91% | |
| Total polled | Total polled | Total polled | 127,040 | 53.82% | |
| Registered electors | Registered electors | Registered electors | 236,042 | | |
The following candidates were elected: Emília Cerqueira (PSD); José Costa (PS); Marina Gonçalves (PS); Jorge Salgueiro Mendes (PSD); João Montenegro (PSD); and Tiago Brandão Rodrigues (PS).

#### 2010s
##### 2019

Results of the 2019 legislative election held on 6 October 2019:
| Party | Party | Party | Votes | % | Seats |
| | Socialist Party | PS | 42,398 | 36.51% | 3 |
| | Social Democratic Party | PSD | 41,210 | 35.49% | 3 |
| | Left Bloc | BE | 10,321 | 8.89% | 0 |
| | CDS – People's Party | CDS–PP | 7,577 | 6.53% | 0 |
| | Unitary Democratic Coalition | CDU | 4,841 | 4.17% | 0 |
| | People Animals Nature | PAN | 2,876 | 2.48% | 0 |
| | React, Include, Recycle | RIR | 1,059 | 0.91% | 0 |
| | Chega | CH | 858 | 0.74% | 0 |
| | Liberal Initiative | IL | 692 | 0.60% | 0 |
| | LIVRE | L | 688 | 0.59% | 0 |
| | Alliance | A | 679 | 0.58% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 671 | 0.58% | 0 |
| | Together for the People | JPP | 587 | 0.51% | 0 |
| | National Renewal Party | PNR | 292 | 0.25% | 0 |
| | Democratic Republican Party | PDR | 281 | 0.24% | 0 |
| | We, the Citizens! | NC | 259 | 0.22% | 0 |
| | United Party of Retirees and Pensioners | PURP | 212 | 0.18% | 0 |
| | Earth Party | PT | 209 | 0.18% | 0 |
| | Portuguese Labour Party | PTP | 208 | 0.18% | 0 |
| | People's Monarchist Party | PPM | 204 | 0.18% | 0 |
| Valid votes | Valid votes | Valid votes | 116,122 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 3,617 | 2.97% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 2,174 | 1.78% | |
| Total polled | Total polled | Total polled | 121,913 | 50.60% | |
| Registered electors | Registered electors | Registered electors | 240,917 | | |
The following candidates were elected: Emília Cerqueira (PSD); Marina Gonçalves (PS); Jorge Salgueiro Mendes (PSD); Anabela Rodrigues (PS); Tiago Brandão Rodrigues (PS); and Eduardo Teixeira (PSD).

##### 2015

Results of the 2015 legislative election held on 4 October 2015:
| Party | Party | Party | Votes | % | Seats |
| | Portugal Ahead | PàF | 58,515 | 47.52% | 4 |
| | Socialist Party | PS | 38,311 | 31.11% | 2 |
| | Left Bloc | BE | 10,237 | 8.31% | 0 |
| | Unitary Democratic Coalition | CDU | 6,722 | 5.46% | 0 |
| | Democratic Republican Party | PDR | 2,399 | 1.95% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 1,117 | 0.91% | 0 |
| | People Animals Nature | PAN | 1,086 | 0.88% | 0 |
| | We, the Citizens! | NC | 1,037 | 0.84% | 0 |
| | ACT! (Portuguese Labour Party and Socialist Alternative Movement) | AGIR | 960 | 0.78% | 0 |
| | National Renewal Party | PNR | 563 | 0.46% | 0 |
| | People's Monarchist Party | PPM | 535 | 0.43% | 0 |
| | LIVRE | L | 453 | 0.37% | 0 |
| | The Earth Party Movement | MPT | 447 | 0.36% | 0 |
| | Citizenship and Christian Democracy | PPV/CDC | 396 | 0.32% | 0 |
| | United Party of Retirees and Pensioners | PURP | 209 | 0.17% | 0 |
| | Together for the People | JPP | 161 | 0.13% | 0 |
| Valid votes | Valid votes | Valid votes | 123,148 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 3,225 | 2.51% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 2,139 | 1.66% | |
| Total polled | Total polled | Total polled | 128,512 | 50.78% | |
| Registered electors | Registered electors | Registered electors | 253,095 | | |
The following candidates were elected: Carlos Abreu Amorim (PàF); Abel Baptista (PàF); José Manuel Carpinteira (PS); Emília Cerqueira (PàF); Luís Campos Ferreira (PàF); and Tiago Brandão Rodrigues (PS).

##### 2011

Results of the 2011 legislative election held on 5 June 2011:
| Party | Party | Party | Votes | % | Seats |
| | Social Democratic Party | PSD | 58,826 | 45.53% | 3 |
| | Socialist Party | PS | 35,327 | 27.34% | 2 |
| | CDS – People's Party | CDS–PP | 18,135 | 14.04% | 1 |
| | Unitary Democratic Coalition | CDU | 6,648 | 5.15% | 0 |
| | Left Bloc | BE | 5,928 | 4.59% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 1,473 | 1.14% | 0 |
| | Party for Animals and Nature | PAN | 926 | 0.72% | 0 |
| | Hope for Portugal Movement | MEP | 573 | 0.44% | 0 |
| | The Earth Party Movement | MPT | 384 | 0.30% | 0 |
| | People's Monarchist Party | PPM | 331 | 0.26% | 0 |
| | Pro-Life Party | PPV | 242 | 0.19% | 0 |
| | National Renewal Party | PNR | 213 | 0.16% | 0 |
| | Democratic Party of the Atlantic | PDA | 200 | 0.15% | 0 |
| Valid votes | Valid votes | Valid votes | 129,206 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 4,009 | 2.97% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,688 | 1.25% | |
| Total polled | Total polled | Total polled | 134,903 | 52.46% | |
| Registered electors | Registered electors | Registered electors | 257,155 | | |
The following candidates were elected: Carlos Abreu Amorim (PSD); Rosa Arezes (PSD); Abel Baptista (CDS-PP); Jorge Fão (PS); Fernando Medina (PS); and Eduardo Teixeira (PSD).

#### 2000s
##### 2009

Results of the 2009 legislative election held on 27 September 2009:
| Party | Party | Party | Votes | % | Seats |
| | Socialist Party | PS | 51,306 | 37.32% | 3 |
| | Social Democratic Party | PSD | 44,327 | 32.24% | 2 |
| | CDS – People's Party | CDS–PP | 19,243 | 14.00% | 1 |
| | Left Bloc | BE | 12,099 | 8.80% | 0 |
| | Unitary Democratic Coalition | CDU | 5,934 | 4.32% | 0 |
| | New Democracy Party | ND | 1,398 | 1.02% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 1,192 | 0.87% | 0 |
| | People's Monarchist Party | PPM | 513 | 0.37% | 0 |
| | Hope for Portugal Movement | MEP | 399 | 0.29% | 0 |
| | Pro-Life Party | PPV | 372 | 0.27% | 0 |
| | Merit and Society Movement | MMS | 257 | 0.19% | 0 |
| | The Earth Party Movement and Humanist Party | MPT-PH | 247 | 0.18% | 0 |
| | National Renewal Party | PNR | 194 | 0.14% | 0 |
| Valid votes | Valid votes | Valid votes | 137,481 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 2,258 | 1.60% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,744 | 1.23% | |
| Total polled | Total polled | Total polled | 141,483 | 55.08% | |
| Registered electors | Registered electors | Registered electors | 256,883 | | |
The following candidates were elected: Abel Baptista (CDS-PP); Jorge Fão (PS); Luís Campos Ferreira (PSD); José Eduardo Martins (PSD); Rosalina Martins (PS); and Defensor Moura (PS).

##### 2005

Results of the 2005 legislative election held on 20 February 2005:
| Party | Party | Party | Votes | % | Seats |
| | Socialist Party | PS | 59,676 | 43.06% | 3 |
| | Social Democratic Party | PSD | 47,645 | 34.38% | 2 |
| | CDS – People's Party | CDS–PP | 16,205 | 11.69% | 1 |
| | Left Bloc | BE | 6,415 | 4.63% | 0 |
| | Unitary Democratic Coalition | CDU | 5,632 | 4.06% | 0 |
| | New Democracy Party | ND | 1,159 | 0.84% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 1,002 | 0.72% | 0 |
| | Humanist Party | PH | 586 | 0.42% | 0 |
| | National Renewal Party | PNR | 263 | 0.19% | 0 |
| Valid votes | Valid votes | Valid votes | 138,583 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 2,214 | 1.56% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,391 | 0.98% | |
| Total polled | Total polled | Total polled | 142,188 | 61.24% | |
| Registered electors | Registered electors | Registered electors | 232,185 | | |
The following candidates were elected: Luís Amado (PS); Abel Baptista (CDS-PP); Jorge Fão (PS); Luís Campos Ferreira (PSD); José Eduardo Martins (PSD); and Rosalina Martins (PS).

##### 2002

Results of the 2002 legislative election held on 17 March 2002:
| Party | Party | Party | Votes | % | Seats |
| | Social Democratic Party | PSD | 63,386 | 46.42% | 3 |
| | Socialist Party | PS | 49,122 | 35.97% | 3 |
| | CDS – People's Party | CDS–PP | 14,283 | 10.46% | 0 |
| | Unitary Democratic Coalition | CDU | 4,844 | 3.55% | 0 |
| | Left Bloc | BE | 2,485 | 1.82% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 870 | 0.64% | 0 |
| | Humanist Party | PH | 701 | 0.51% | 0 |
| | People's Monarchist Party | PPM | 541 | 0.40% | 0 |
| | The Earth Party Movement | MPT | 321 | 0.24% | 0 |
| Valid votes | Valid votes | Valid votes | 136,553 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 1,231 | 0.88% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,484 | 1.07% | |
| Total polled | Total polled | Total polled | 139,268 | 60.71% | |
| Registered electors | Registered electors | Registered electors | 229,402 | | |
The following candidates were elected: Carlos Antunes (PSD); Fernando Cabodeira (PS); Luís Campos Ferreira (PSD); Marques Júnior (PS); José Eduardo Martins (PSD); and Rosalina Martins (PS).

#### 1990s
##### 1999

Results of the 1999 legislative election held on 10 October 1999:
| Party | Party | Party | Votes | % | Seats |
| | Socialist Party | PS | 55,149 | 40.95% | 3 |
| | Social Democratic Party | PSD | 49,081 | 36.44% | 2 |
| | CDS – People's Party | CDS–PP | 19,249 | 14.29% | 1 |
| | Unitary Democratic Coalition | CDU | 6,886 | 5.11% | 0 |
| | Left Bloc | BE | 1,689 | 1.25% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 729 | 0.54% | 0 |
| | People's Monarchist Party | PPM | 646 | 0.48% | 0 |
| | The Earth Party Movement | MPT | 449 | 0.33% | 0 |
| | National Solidarity Party | PSN | 446 | 0.33% | 0 |
| | Humanist Party | PH | 360 | 0.27% | 0 |
| Valid votes | Valid votes | Valid votes | 134,684 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 1,142 | 0.83% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,391 | 1.01% | |
| Total polled | Total polled | Total polled | 137,217 | 60.45% | |
| Registered electors | Registered electors | Registered electors | 226,975 | | |
The following candidates were elected: Francisco Rodrigues Araújo (PSD); Daniel Campelo (CDS-PP); Marques Júnior (PS); Carvalho Martins (PSD); Rui Solheiro (PS); and José Carlos Tavares (PS).

##### 1995

Results of the 1995 legislative election held on 1 October 1995:
| Party | Party | Party | Votes | % | Seats |
| | Social Democratic Party | PSD | 61,051 | 42.74% | 3 |
| | Socialist Party | PS | 56,234 | 39.37% | 3 |
| | CDS – People's Party | CDS–PP | 16,328 | 11.43% | 0 |
| | Unitary Democratic Coalition | CDU | 6,614 | 4.63% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 753 | 0.53% | 0 |
| | Popular Democratic Union | UDP | 527 | 0.37% | 0 |
| | People's Monarchist Party and The Earth Party Movement | PPM-MPT | 496 | 0.35% | 0 |
| | Revolutionary Socialist Party | PSR | 491 | 0.34% | 0 |
| | People's Party | PG | 340 | 0.24% | 0 |
| Valid votes | Valid votes | Valid votes | 142,834 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 946 | 0.65% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,272 | 0.88% | |
| Total polled | Total polled | Total polled | 145,052 | 64.38% | |
| Registered electors | Registered electors | Registered electors | 225,309 | | |
The following candidates were elected: Marques Júnior (PS); Roleira Marinho (PSD); Carvalho Martins (PSD); Lucas Pires (PSD); Rui Solheiro (PS); and José Carlos Tavares (PS).

##### 1991

Results of the 1991 legislative election held on 6 October 1991:
| Party | Party | Party | Votes | % | Seats |
| | Social Democratic Party | PSD | 79,408 | 57.87% | 4 |
| | Socialist Party | PS | 35,212 | 25.66% | 2 |
| | Social Democratic Centre Party | CDS | 10,081 | 7.35% | 0 |
| | Unitary Democratic Coalition | CDU | 6,923 | 5.04% | 0 |
| | National Solidarity Party | PSN | 1,700 | 1.24% | 0 |
| | Democratic Renewal Party | PRD | 1,500 | 1.09% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 913 | 0.67% | 0 |
| | Revolutionary Socialist Party | PSR | 766 | 0.56% | 0 |
| | People's Monarchist Party | PPM | 723 | 0.53% | 0 |
| Valid votes | Valid votes | Valid votes | 137,226 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 1,019 | 0.73% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 1,444 | 1.03% | |
| Total polled | Total polled | Total polled | 139,689 | 65.03% | |
| Registered electors | Registered electors | Registered electors | 214,823 | | |
The following candidates were elected: Lima Amorim (PSD); Marques da Costa (PS); Roleira Marinho (PSD); Carvalho Martins (PSD); Luís Marques Mendes (PSD); and Oliveira e Silva (PS).

#### 1980s
##### 1987

Results of the 1987 legislative election held on 19 July 1987:
| Party | Party | Party | Votes | % | Seats |
| | Social Democratic Party | PSD | 76,207 | 55.92% | 5 |
| | Socialist Party | PS | 28,351 | 20.80% | 1 |
| | Social Democratic Centre Party | CDS | 10,727 | 7.87% | 0 |
| | Unitary Democratic Coalition | CDU | 8,741 | 6.41% | 0 |
| | Democratic Renewal Party | PRD | 6,758 | 4.96% | 0 |
| | People's Monarchist Party | PPM | 1,078 | 0.79% | 0 |
| | Portuguese Democratic Movement | MDP | 831 | 0.61% | 0 |
| | Christian Democratic Party | PDC | 743 | 0.55% | 0 |
| | Workers' Party of Socialist Unity | POUS | 729 | 0.53% | 0 |
| | Revolutionary Socialist Party | PSR | 708 | 0.52% | 0 |
| | Popular Democratic Union | UDP | 641 | 0.47% | 0 |
| | Communist Party (Reconstructed) | PC(R) | 450 | 0.33% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 314 | 0.23% | 0 |
| Valid votes | Valid votes | Valid votes | 136,278 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 1,442 | 1.03% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 2,234 | 1.60% | |
| Total polled | Total polled | Total polled | 139,954 | 70.10% | |
| Registered electors | Registered electors | Registered electors | 199,636 | | |
The following candidates were elected: Roleira Marinho (PSD); Fernandes Marques (PSD); Hilário Marques (PSD); João Oliveira Martins (PSD); Américo Sequeira (PSD); and Oliveira e Silva (PS).

##### 1985

Results of the 1985 legislative election held on 6 October 1985:
| Party | Party | Party | Votes | % | Seats |
| | Social Democratic Party | PSD | 47,253 | 34.50% | 3 |
| | Socialist Party | PS | 25,924 | 18.93% | 1 |
| | Social Democratic Centre Party | CDS | 23,368 | 17.06% | 1 |
| | Democratic Renewal Party | PRD | 22,904 | 16.72% | 1 |
| | United People Alliance | APU | 11,591 | 8.46% | 0 |
| | Christian Democratic Party | PDC | 1,508 | 1.10% | 0 |
| | Popular Democratic Union | UDP | 1,348 | 0.98% | 0 |
| | Workers' Party of Socialist Unity | POUS | 1,055 | 0.77% | 0 |
| | Revolutionary Socialist Party | PSR | 951 | 0.69% | 0 |
| | Communist Party (Reconstructed) | PC(R) | 663 | 0.48% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 416 | 0.30% | 0 |
| Valid votes | Valid votes | Valid votes | 136,981 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 1,262 | 0.90% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 2,755 | 1.95% | |
| Total polled | Total polled | Total polled | 140,998 | 71.67% | |
| Registered electors | Registered electors | Registered electors | 196,719 | | |
The following candidates were elected: José Domingos (PSD); Abreu Lima (CDS); Henrique Mata (PSD); João de Deus Pinheiro (PSD); Oliveira e Silva (PS); and Agostinho de Sousa (PRD).

##### 1983

Results of the 1983 legislative election held on 25 April 1983:
| Party | Party | Party | Votes | % | Seats |
| | Social Democratic Party | PSD | 44,869 | 33.59% | 3 |
| | Socialist Party | PS | 44,711 | 33.48% | 2 |
| | Social Democratic Centre Party | CDS | 25,291 | 18.94% | 1 |
| | United People Alliance | APU | 13,572 | 10.16% | 0 |
| | People's Monarchist Party | PPM | 1,322 | 0.99% | 0 |
| | Christian Democratic Party | PDC | 1,233 | 0.92% | 0 |
| | Socialist Workers League | LST | 541 | 0.41% | 0 |
| | Popular Democratic Union | UDP | 525 | 0.39% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 525 | 0.39% | 0 |
| | Revolutionary Socialist Party | PSR | 476 | 0.36% | 0 |
| | Workers' Party of Socialist Unity | POUS | 353 | 0.26% | 0 |
| | Portuguese Marxist–Leninist Communist Organization | OCMLP | 146 | 0.11% | 0 |
| Valid votes | Valid votes | Valid votes | 133,564 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 1,104 | 0.80% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 2,913 | 2.12% | |
| Total polled | Total polled | Total polled | 137,581 | 74.45% | |
| Registered electors | Registered electors | Registered electors | 184,789 | | |
The following candidates were elected: José Domingos (PSD); José Pita Guerreiro (PS); Abreu Lima (CDS); Manuel Filipe Loureiro (PS); Roleira Marinho (PSD); and Gaspar Pacheco (PSD).

##### 1980

Results of the 1980 legislative election held on 5 October 1980:
| Party | Party | Party | Votes | % | Seats |
| | Democratic Alliance | AD | 86,186 | 60.84% | 5 |
| | Republican and Socialist Front | FRS | 33,245 | 23.47% | 1 |
| | United People Alliance | APU | 14,548 | 10.27% | 0 |
| | Workers' Party of Socialist Unity | POUS | 2,187 | 1.54% | 0 |
| | Labour Party | PT | 1,351 | 0.95% | 0 |
| | Popular Democratic Union | UDP | 996 | 0.70% | 0 |
| | Portuguese Marxist–Leninist Communist Organization | OCMLP | 924 | 0.65% | 0 |
| | Christian Democratic Party, Independent Movement for the National Reconstruction / Party of the Portuguese Right and National Front | PDC- MIRN/ PDP- FN | 902 | 0.64% | 0 |
| | Revolutionary Socialist Party | PSR | 693 | 0.49% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 623 | 0.44% | 0 |
| Valid votes | Valid votes | Valid votes | 141,655 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 979 | 0.67% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 2,932 | 2.01% | |
| Total polled | Total polled | Total polled | 145,566 | 81.91% | |
| Registered electors | Registered electors | Registered electors | 177,716 | | |
The following candidates were elected: Júlio Castro Caldas (AD); José Domingos (AD); Daniel Domingues (AD); Abreu Lima (AD); Roleira Marinho (AD); and Oliveira e Silva (FRS).

#### 1970s
##### 1979

Results of the 1979 legislative election held on 2 December 1979:
| Party | Party | Party | Votes | % | Seats |
| | Democratic Alliance | AD | 79,702 | 57.14% | 4 |
| | Socialist Party | PS | 36,186 | 25.94% | 2 |
| | United People Alliance | APU | 14,266 | 10.23% | 0 |
| | Christian Democratic Party | PDC | 2,483 | 1.78% | 0 |
| | Portuguese Workers' Communist Party | PCTP | 1,757 | 1.26% | 0 |
| | Left-wing Union for the Socialist Democracy | UEDS | 1,457 | 1.04% | 0 |
| | Popular Democratic Union | UDP | 1,312 | 0.94% | 0 |
| | Revolutionary Socialist Party | PSR | 1,200 | 0.86% | 0 |
| | Portuguese Marxist–Leninist Communist Organization | OCMLP | 1,125 | 0.81% | 0 |
| Valid votes | Valid votes | Valid votes | 139,488 | 100.00% | 6 |
| Blank votes | Blank votes | Blank votes | 1,356 | 0.93% | |
| Rejected votes – other | Rejected votes – other | Rejected votes – other | 4,567 | 3.14% | |
| Total polled | Total polled | Total polled | 145,411 | 84.38% | |
| Registered electors | Registered electors | Registered electors | 172,323 | | |
The following candidates were elected: Júlio Castro Caldas (AD); José Domingos (AD); Abreu Lima (AD); Manuel Tito de Morais (PS); Henrique Barrilaro Ruas (AD); and Vitor Vasques (PS).

##### 1976

Results of the 1976 legislative election held on 25 April 1976:
| Party | Party | Party | Votes | % | Seats |
| | Democratic People's Party | PPD | 42,519 | 34.90% | 3 |
| | Socialist Party | PS | 33,094 | 27.16% | 2 |
| | Social Democratic Centre Party | CDS | 30,437 | 24.98% | 2 |
| | Portuguese Communist Party | PCP | 8,611 | 7.07% | 0 |
| | People's Socialist Front | FSP | 1,314 | 1.08% | 0 |
| | Christian Democratic Party | PDC | 1,192 | 0.98% | 0 |
| | Popular Democratic Union | UDP | 1,110 | 0.91% | 0 |
| | People's Monarchist Party | PPM | 995 | 0.82% | 0 |
| | Movement of Socialist Left | MES | 881 | 0.72% | 0 |
| | Internationalist Communist League | LCI | 583 | 0.48% | 0 |
| | Re-Organized Movement of the Party of the Proletariat | MRPP | 399 | 0.33% | 0 |
| | Worker–Peasant Alliance | AOC | 380 | 0.31% | 0 |
| | Communist Party of Portugal (Marxist–Leninist) | PCP(ML) | 314 | 0.26% | 0 |
| | Workers' Revolutionary Party | PRT | 0 | 0.00% | 0 |
| Valid votes | Valid votes | Valid votes | 121,829 | 100.00% | 7 |
| Rejected votes | Rejected votes | Rejected votes | 7,921 | 6.10% | |
| Total polled | Total polled | Total polled | 129,750 | 79.14% | |
| Registered electors | Registered electors | Registered electors | 163,949 | | |
The following candidates were elected: Eugénio Anacoreta Correia (CDS); José Rui Fernandes (PPD); Amantino Lemos (PPD); Abreu Lima (CDS); Manuel Tito de Morais (PS); Américo Sequeira (PPD); and Oliveira e Silva (PS).