The election of Istanbul Metropolitan Municipality was held on 28 March 2004, alongside all local body elections (officially known as the 28 March 2004 Local Administrations General Elections) of Turkey. In the election, Recep Tayyip Erdogan's new AK Party won the election. AK Party's mayoral candidate Kadir Topbas became the mayor of Istanbul Metropolitan Municipality.

Results PartyCandidatePopular VotesPercentageAKPKadir Topbas1,917,57745.3%CHPMehmet Sefa Sirmen 1,223,85628.9%SPMukadder Baseğmez228,6155.4%DYPAhmet Vefik Alp206,4104.9%MHPMeral Aksener173,2744.1%SHPMustafa Kul153,8403.6%GPHorizon Ilkiz145,1203.4%Others —177,1084.3%Independents —5,6870.1% Total4,231,487100%Valid Votes4,231,48796.16%Invalid/Blank Votes169,1503.84%Total Votes4,400,637100%Registered Voters/Turn Out6,440,60668.33%

Results by District District Others Valid votes Voter turnout Registered electors# of votes % # of votes % # of votes % # of votes % # of votes % 2,54725.472,83428.3310,00196.5310,36074.513,905 42,47838.4325,51823.09110,51896.26114,81665.96174,081 40,18316.9376,54532.24237,37695.08249,63966.6374,872 57,21427.4950,45424.23208,19196.86214,96261.9347,302 29,06726.3727,74225.15110,24597.69122,10966.66169,314 18,62115.8437,16531.6117,58396.3122,10972.46168,542 23,42323.4823,30823.3599,77197.3102,53162.53163,968 23,53226.4623,55326.4888,94895.293,44073.34127,398 29,38326.9832,41929.76108,94295.42114,16666.15172,589 3,71319.78,42044.6718,85095.4219,75359.733,091 25,33914.7256,03232.57172,07595.22180,70170.32256,973 32,93627.6332,49427.26119,19895.66124,61675.73164,547 42,73722.156,43229.18193,35096.13201,12664.63311,169 63,18621.1477,24125.84298,94596.12310,99671.58434,523

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