In Dobrich region, 31,591 of 170,746 eligible voters have cast ballots, or 18.5%, the regional administration said.
Turnout is highest in Shabla municipality at 25.52% and lowest in Tervel municipality at 9.41%. In the city of Dobrich, 21.07% of eligible voters have voted.
All polling stations in the region had closed by 8.25pm. The Dobrich regional police directorate (ODMVR) said it has so far recorded no breaches of public order or the Electoral Code.
Police have issued 23 certificates to Bulgarian citizens whose ID documents were lost, stolen, damaged or destroyed.
The Regional Election Commission in Burgas says 17,967 of the 363,647 people on the voter lists in Burgas region had voted by 11am on 25 October, or 4.94%. Turnout was highest in Malko Tarnovo, at 12.35%.
Dobrich regional police officers are guarding the election materials until they are handed over.