Demirtepe ranks 55th by electorate among the 100 localities of Doğubayazıt. The neighborhood has a single ballot box, and 172 voters were registered there for the 2023 parliamentary election.
123 people voted at that election. Yeşil Sol Parti took the most votes with 94; AK Parti followed with 13. Yeşil Sol Parti's share here is 3.5 points above the district average. In the presidential runoff, 90 of 103 valid votes went to Kemal Kılıçdaroğlu — 5.2 points above the district average. At the 2017 referendum 126 of 148 valid votes were 'no' — 9.0 points above the district average.
The electorate shrank from 219 registered voters in 2011 to 172 in 2023 — a change of about 21 percent. Turnout at the 2024 local election was 40.8%, 24.4 points below the district average. The neighborhood has stayed on the same line since 2014: the same political line has finished first in all of the last 6 elections (BDP in 2014, Yeşil Sol Parti in 2015, HDP in 2019, DEM Parti in 2024).