By 11:00 am in the presidential election, 17,967 people had voted in Burgas region, out of 363,647 on the voter lists. That is 4.94% of voters, the Regional Election Commission in Burgas said.
Malko Tarnovo leads with 12.35%, while turnout is lowest in Aytos, at 4.06%.
The figures are interim ones for Sunday, 25 October, and cover all 13 municipalities in the region.
Only two other municipalities are above 10%. Tsarevo is next with 10.41%, and Sozopol is third with 8.41%.
The other seaside municipalities lag behind. In Primorsko, 7.35% of registered voters had cast ballots by 11am, in Nessebar 6.97%, and in Pomorie 5.49%.
Inland, turnout is highest in Sredets at 6.49% and Kameno at 6.08%. Karnobat is at the regional average of 4.94%, and in Sungurlare 4.82% of voters had voted.
Burgas municipality is among those with the lowest turnout. By 11am, 7,730 people there, including the surrounding villages, had voted, or 4.18%. Only Ruen, at 4.13%, and Aytos, at 4.06%, are lower.