Orhangazi is one of the localities of Altındağ; it had 1,743 registered voters at the 2011 parliamentary election.
AK Parti took 784 of the 1,452 valid votes cast in the neighborhood at that election (54.0%). That puts the neighborhood 8.8 points below the party's district average. At the 2010 referendum 62.6% of the neighborhood voted 'yes' — 4.8 points below the district average.
The picture has not changed since 2009: AK Parti has finished first in all of the last 5 elections. At the 2011 parliamentary election 70 of 1,522 ballots cast were ruled invalid (4.6%), well above the district average.