According to exit polls, the Social Democratic Party (SDP)-led People's Coalition has won 58 seats in the 151-seat parliament and the Croatian Democratic Union (HDZ) 57 seats in Sunday's early parliamentary election.
The Bridge party has won 11 seats, according to the exit polls.
The exit polls show that this was a cliffhanger election.
The coalition led by Human Shield Party has mustered 7, and the Istrian Democratic Party four seats.
The party led by Zagreb Mayor Milan Bandic has two seats and the regional HDSSB one seat.
Some 3.8 million Croatians in the country and abroad were eligible to vote in the election for the 9th legislature.