Madenli-Guzeltepe is one of the localities of İskenderun; it had 827 registered voters at the 2011 parliamentary election.
CHP took 96.3% in the neighborhood at that election. Across İskenderun the same party stood at 43.5%, putting the neighborhood 52.7 points above the district average. At the 2010 referendum 99.5% of the neighborhood voted 'no'; across the district that was 60.4%.
The picture has not changed since 2009: CHP has finished first in all of the last 4 elections. Turnout at the 2009 local election was 79.9%, 5.1 points below the district average.