Marmara Kadin Kapali Ceza Infaz Kurumu ranks 45th by electorate among the 45 localities of Silivri. The neighborhood has a single ballot box, and 66 voters were registered there for the 2023 parliamentary election.
72 people voted at that election. CHP took the most votes with 29; AK Parti followed with 23. CHP's share here is 7.2 points above the district average. In the presidential runoff, 47 of 67 valid votes went to Kemal Kılıçdaroğlu; across the district that share was 58.3%.
Turnout at the 2024 local election was 10.5%, 69.5 points below the district average.