The races are tightening up with less than a week to go until the elections.
Voters are in the final stages of deciding on which mayor or governor they want to represent them.
The latest official poll numbers show the ruling Saenuri Party has the upper hand in six regions, the main opposition New Politics Alliance for Democracy in five, and one independent candidate leading in the city of Gwangju, while the rest of the five regions are neck-and-neck at this stage.
An opinion poll conducted by Research&Research has the incumbent mayor of Seoul, Park Won-soon, still in lead over his conservative rival Chung Mong-joon, but the gap has narrowed compared to two weeks ago.
In Gyeonggi-do Province, which has the largest number of eligible voters, the ruling Saenuri Party's candidate for govenor, Nam Kyung-pil, has a slight lead over the opposition candidate Kim-Jin-pyo.
A very tense race is expected in Busan, which is getting a lot of attention this time around, as independent candidate Oh Geo-don is receiving great support.
This was one of the last polls used by various media, Thursday.
The National Election Commission forbids the release of any newly conducted opinion polls, six days ahead of the elections.
For those who won't be able to vote on June 4th, early voting in Korea will be open for the first time on Friday, for two days, at some 35-hundred polling stations across the country.
"Anything could happen in the coming days to turn the ratings on their head as the voter tendency among different age groups and voter turnout play a big role in the actual results.
Kwon Soa, Arirang News."