According to the electoral authority's website, 170,000 people in Västra Götaland cast their ballot ahead of Sunday's vote.
In Orebro, a registered 28,000 people can vote up until 8pm while the whole region of Västra Götaland has 1,2 million voters on the electoral register.
The re-vote for Örebro city council and Västra Götaland county council is taking place due to miscounts in very close run seats at the last election.
A record number of complaints were received by the review board over vote counting discrepancies in the 2010 national and local elections.
There were votes that never got counted and faulty votes that had been counted. In Örebro, volunteering election workers from one party accompanied voters into the polling station, which is strictly forbidden, and in Västra Götaland, three voters were declined to vote even though they had the right to do so.
As the election result in these two areas were particularly close - in the Örebro constituency it was only one vote that meant the Social Democrats got a seat instead of the Liberals - the elections appeal board decided these two elections would have to be re-done.
At the moment, Västra Götaland sees a red green coalition supported by the small independent Sjukvårdspartiet manning the county council, which is the body that decides on health care in this country. But these parties have no outright majority and are dependent on support from the Sweden Democrats.
And in Örebro, the Sweden Democrats are also holding the balance of power, as the governing Social Democrat and Left party coalition is only slightly bigger than the centre-right-coalition, which is supported by the greens.