Karaagac ranks 167th by electorate among the 184 localities of Adıyaman. The neighborhood has a single ballot box, and 59 voters were registered there for the 2023 parliamentary election.
The neighborhood parts ways with the district as a whole. At the 2023 parliamentary election it went to Yeşil Sol Parti with 35 votes, while across Adıyaman the leading party was AK Parti, with Yeşil Sol Parti here running 42.2 points above its district average. In the presidential runoff, 57 of 62 valid votes went to Kemal Kılıçdaroğlu — 53.9 points above the district average. At the 2017 referendum 77 of 78 valid votes were 'no' — 62.5 points above the district average.
Turnout at the 2024 local election was 92.6%, 20.3 points above the district average. The electorate shrank from 118 registered voters in 2011 to 59 in 2023 — a change of about 50 percent. The tightest race came at the 2023 parliamentary election: Yeşil Sol Parti took 35 votes to CHP's 21 — a margin of just 14 votes. First place has changed hands 4 times here since 2009.