The opposition Serb Progressives (SNS) and their coalition have received 23.5 percent, according to these first, unofficial results.
These coalitions are trailed by that led by the Socialist Party of Serbia (SPS)(14.6 percent), the Democratic Party of Serbia (DSS)(7.0 percent), the LDP-led coalition (6.3 percent), and the United Regions of Serbia (5.1 percent).
At this point, the parties and coalitions that are left below the five percent threshold are the Serb Radicals (SRS)(4.9 percent), and the Dveri Movement (3.9 percent)
At the same time, the presidential race is set to be decided in the runoff two weeks from now, considering that none of the candidates won over 50 percent of the votes cast this Sunday.
Early, unofficial results showed that DS candidate Boris Tadic had won 26 percent, followed by Tomislav Nikolic with 24.5 percent of the vote.
Leader of the Socialists (SPS) Ivica Dacic has received 14.6 percent, according to these results based on 36.3 percent of the ballots counted so far.
DSS leader Vojislav Koštunica came in at number four with 7.4 percent.
Other candidates fared as follows: Zoran Stankovic (URS), 6.6 percent; Cedomir Jovanovic (LDP), 4.9 percent; Jadranka Šešelj (SRS), 4.1 percent.
The turnout in the elections has been estimated at 58.7 percent.
The state election commission (RIK) is yet to publish its preliminary results.
Serbians on May 6 elected the country's new parliament, local governments, and the provincial assembly of Vojvodina, and voted in the first round of the presidential election.