Agcin ranks 78th by electorate among the 184 localities of Adıyaman. The village has a single ballot box, and 237 voters were registered there for the 2023 parliamentary election.
210 people voted at that election. AK Parti took the most votes with 127; Yeniden Refah followed with 41. AK Parti's share here is 16.3 points above the district average. In the presidential runoff, 173 of 211 valid votes went to Recep Tayyip Erdoğan; across the district that share was 62.0%.
The picture has not changed since 2018: AK Parti has finished first in all of the last 4 elections. At the 2024 local election the village went to AK Parti with 63 votes, while Adıyaman as a whole was won by CHP. Turnout at the 2024 local election was 46.2%, 26.1 points below the district average.