Portuguese general elections in 1983 and 1985 for reference. National summary of votes and seats |- | colspan=11| |- ! rowspan="2" colspan=2 style="background-color:#E9E9E9;text-align:left;" |Parties ! rowspan="2" style="background-color:#E9E9E9;text-align:right;" |Votes ! rowspan="2" style="background-color:#E9E9E9;text-align:right;" |% ! rowspan="2" style="background-color:#E9E9E9;text-align:right;" |± ! colspan="5" style="background-color:#E9E9E9;text-align:center;" |MPs ! rowspan="2" style="background-color:#E9E9E9;text-align:right;" |MPs %/votes % |- style="background-color:#E9E9E9" ! style="background-color:#E9E9E9;text-align:center;"|1983 ! style="background-color:#E9E9E9;text-align:center;"|1985 ! style="background-color:#E9E9E9;text-align:right;" |± ! style="background-color:#E9E9E9;text-align:right;" |% ! style="background-color:#E9E9E9;text-align:right;" |± |- | |1,732,288||29.87||2.7||75||88||13||35.20||5.2||1.18 |- | |1,204,321||20.77||15.3||101||57||44||22.80||17.6||1.10 |- | |1,038,893||17.92||||||45||||18.00||||1.00 |- | |898,281||15.49||2.6||44||38||6||15.20||2.4||0.98 |- | |577,580||9.96||2.6||30||22||8||8.80||3.2||0.88 |- | style="width:10px;background-color:#E2062C;text-align:center;" | | style="text-align:left;" |People's Democratic Union |73,401||1.27||0.8||0||0||0||0.00||0.0||0.0 |- | |41,831||0.72||0.0||0||0||0||0.00||0.0||0.0 |- | |35,238||0.61||0.4||0||0||0||0.00||0.0||0.0 |- | |19,943||0.34||0.1||0||0||0||0.00||0.0||0.0 |- | |19,085||0.33||0.0||0||0||0||0.00||0.0||0.0 |- | |12,749||0.22||0.2||0||0||0||0.00||0.0||0.0 |- |colspan=2 style="text-align:left;background-color:#E9E9E9"|Total valid |width="65" style="text-align:right;background-color:#E9E9E9"|5,653,610 |width="40" style="text-align:right;background-color:#E9E9E9"|97.49 |width="40" style="text-align:right;background-color:#E9E9E9"|0.1 |width="40" style="text-align:right;background-color:#E9E9E9"|250 |width="40" style="text-align:right;background-color:#E9E9E9"|250 |width="40" style="text-align:right;background-color:#E9E9E9"|0 |width="40" style="text-align:right;background-color:#E9E9E9"|100.00 |width="40" style="text-align:right;background-color:#E9E9E9"|0.0 |width="40" style="text-align:right;background-color:#E9E9E9"|— |- |colspan=2|Blank ballots |48,709||0.84||0.1||colspan=6 rowspan=4| |- |colspan=2|Invalid ballots |96,610||1.67||0.1 |- |colspan=2 style="text-align:left;background-color:#E9E9E9"|Total |width="65" style="text-align:right;background-color:#E9E9E9"|5,798,929 |width="40" style="text-align:right;background-color:#E9E9E9"|100.00 |width="40" style="text-align:right;background-color:#E9E9E9"| |- |colspan=2|Registered voters/turnout ||7,818,981||74.16||3.6 |- | colspan=11 style="text-align:left;" | Source: Comissão Nacional de Eleições Distribution by constituency |- class="unsortable" !rowspan=2|Constituency!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S !rowspan=2|TotalS |- class="unsortable" style="text-align:center;" !colspan=2 | PSD !colspan=2 | PS !colspan=2 | PRD !colspan=2 | APU !colspan=2 | CDS |- | style="text-align:left;" | Azores | style="background:; color:white;"|48.3 | 3 | 20.1 | 1 | 15.2 | 1 | 4.4 | - | 6.5 | - | 5 |- | style="text-align:left;" | Aveiro | style="background:; color:white;"|38.4 | 6 | 23.0 | 4 | 13.4 | 2 | 6.5 | 1 | 13.5 | 2 | 15 |- | style="text-align:left;" | Beja | 13.7 | 1 | 20.1 | 1 | 11.6 | - | style="background:red; color:white;"|44.9 | 3 | 2.2 | - | 5 |- | style="text-align:left;" | Braga | style="background:; color:white;"|32.8 | 6 | 21.8 | 4 | 16.8 | 3 | 8.5 | 1 | 14.0 | 2 | 16 |- | style="text-align:left;" | Bragança | style="background:; color:white;"|39.2 | 2 | 22.7 | 1 | 6.9 | - | 5.3 | - | 17.1 | 1 | 4 |- | style="text-align:left;" | Castelo Branco | style="background:; color:white;"|31.2 | 3 | 18.5 | 1 | 24.4 | 2 | 8.9 | - | 9.6 | - | 6 |- | style="text-align:left;" | Coimbra | style="background:; color:white;"|29.5 | 4 | 28.5 | 3 | 16.9 | 2 | 10.1 | 1 | 8.6 | 1 | 11 |- | style="text-align:left;" | Évora | 19.1 | 1 | 14.3 | 1 | 15.8 | 1 | style="background:red; color:white;"|41.2 | 2 |