Municipalities
The district is composed of 15 municipalities: * Alter do Chão * Arronches *Summary of votes and seats won 1976-2022
, - class="unsortable" !rowspan=2, Parties!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S!!%!!S , - class="unsortable" align="center" !colspan=2 , 1976 !colspan=2 , 1979 !colspan=2 , 1980 !colspan=2 , 1983 !colspan=2 , 1985 !colspan=2 , 1987 !colspan=2 , 1991 !colspan=2 , 1995 !colspan=2 , 1999 !colspan=2 , 2002 !colspan=2 , 2005 !colspan=2 , 2009 !colspan=2 , 2011 !colspan=2 , 2015 !colspan=2 , 2019 !colspan=2 , 2022 , - , align="left", PS , , style="background:#FF66FF;", 41.9 , , style="background:#FF66FF;", 3 , , 29.8 , , 1 , , 32.4 , , 1 , , style="background:#FF66FF;", 38.5 , , style="background:#FF66FF;", 2 , , 23.7 , , 1 , , 25.1 , , 1 , , 33.5 , , 1 , , style="background:#FF66FF;", 50.5 , , style="background:#FF66FF;", 2 , , style="background:#FF66FF;", 51.2 , , style="background:#FF66FF;", 2 , , style="background:#FF66FF;", 45.3 , , style="background:#FF66FF;", 2 , , style="background:#FF66FF;", 54.9 , , style="background:#FF66FF;", 2 , , style="background:#FF66FF;", 38.3 , , style="background:#FF66FF;", 1 , , 32.4 , , 1 , , style="background:#FF66FF;", 42.4 , , style="background:#FF66FF;", 1 , , style="background:#FF66FF;", 44.7 , , style="background:#FF66FF;", 2 , , style="background:#FF66FF;", 47.2 , , style="background:#FF66FF;", 2 , - , align="left", PSD , , 10.1 , , , , align=center colspan=4, ''In AD'' , , 19.1 , , 1 , , 20.9 , , 1 , , style="background:#FF9900;", 37.4 , , style="background:#FF9900;", 1 , , style="background:#FF9900;", 38.9 , , style="background:#FF9900;", 2 , , 23.4 , , 1 , , 22.5, , 1 , , 30.6 , , 1 , , 20.2 , , , , 23.8 , , 1 , , style="background:#FF9900;", 32.5 , , style="background:#FF9900;", 1 , , align=center colspan=2, ''In PàF'' , , 20.1 , , , , 23.2 , , , - , align="left", PCP/APU/CDU , , 22.0 , , 1 , , 29.4, , 1 , , 26.1 , , 1 , , 28.7 , , 1 , , style="background:red;", 25.2 , , style="background:red;", 1 , , 20.9 , , 1 , , 15.2 , , , , 14.0 , , , , 15.0 , , , , 12.4 , , , , 12.1 , , , , 12.9 , , , , 12.8 , , , , 12.2 , , , , 8.1 , , , , 7.6 , , , - , align="left", AD , , colspan=2, , , style="background:#00FFFF;", 32.1 , , style="background:#00FFFF;", 2 , , style="background:#00FFFF;", 33.4 , , style="background:#00FFFF;", 2 , , colspan=26, , - , align="left", PàF , , colspan=26, , , 27.6 , , 1 , , colspan=4, , - ! Total seats , , colspan=8, 4 , , colspan=12, 3 , , colspan=12, 2 , - ! colspan=33, Source