Sjösa is a locality situated in Nyköping Municipality, Södermanland County, Sweden with 483 inhabitants in 2010.
Elections Sjösa is the sole locality in the otherwise rural Svärta electoral ward that covers the area around Svärta Church a few miles to its northwest.
Riksdag Year%VotesVSMPCLKDMSDNyDLeftRight1973 92.5 470 2.6 44.9 34.3 5.5 3.0 9.1 47.4 48.91976 94.0 549 2.2 43.0 30.8 11.3 0.7 11.7 45.2 53.71979 95.6 610 1.8 45.2 23.3 9.3 1.3 18.5 47.0 51.11982 95.8 597 1.5 42.7 2.7 24.8 5.5 2.2 20.6 46.9 50.91985 93.8 579 2.4 39.7 1.9 22.6 12.1 21.2 42.1 56.01988 93.9 580 3.1 41.4 7.4 19.3 8.6 2.6 17.6 51.9 45.51991 92.0 553 2.9 37.3 3.6 17.4 8.1 8.3 13.2 7.8 40.1 47.01994 92.0 567 6.3 43.6 6.9 14.8 5.8 4.4 16.0 0.7 56.8 41.11998 86.5 558 11.1 37.8 5.7 11.5 2.3 15.4 15.8 54.7 45.02002 88.2 557 7.5 44.3 4.5 11.3 10.2 9.7 11.1 0.7 56.4 42.42006 88.2 628 5.3 35.2 7.3 11.3 7.6 8.4 19.3 3.8 47.8 46.72010 90.0 701 5.1 25.3 8.4 8.0 6.9 4.9 36.1 5.3 38.8 55.82014 90.3 719 4.2 28.2 8.9 6.8 3.9 3.5 27.5 14.7 41.3 41.72018 90.6 834 5.8 27.8 4.8 9.7 4.0 6.4 21.8 19.1 48.1 51.22022 89.9 1,013 4.3 27.1 4.3 8.2 3.4 3.7 25.7 22.9 44.0 55.6
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