With 84 voters on the roll at the 2023 parliamentary election, Semikan stands 151st among the 184 localities of Adıyaman, and its votes were cast at one ballot box.
The neighborhood parts ways with the district as a whole. At the 2023 parliamentary election it went to independents with 61 votes, while across Adıyaman the leading party was AK Parti, with independents here running 77.6 points above its district average. In the presidential runoff, 68 of 73 valid votes went to Recep Tayyip Erdoğan — 31.2 points above the district average. At the 2017 referendum 83 of 83 valid votes were 'yes' — 36.2 points above the district average.
At the 2024 local election AK Parti and Yeniden Refah finished level, on 19 votes each. At the 2024 local election the neighborhood went to AK Parti with 19 votes, while Adıyaman as a whole was won by CHP. Turnout at the 2024 local election was 83.3%, 11.0 points above the district average.