The Bharatiya Janata Party and Nationalist Congress Party are likely to form the Raigad Zilla Parishad governing body after securing 15 and 16 seats respectively.
Shiv Sena emerged as the single largest party with 21 seats but may sit in the opposition.
The president’s post is expected to go to the BJP and the deputy president’s post to the NCP, with Mahayuti leaders holding talks on the final arrangement.