context: Before the integration of urban and rural areas, the area of ​​Cheongju, which corresponds to the urban area, was 153.45km2 as of 2012, of which 69.03km² and Heungdeok-gu were 84.42km². The administrative district was 2 wards 30 dongs (82 statutory dongs). As of the end of April 2014, the population of Cheongju City before integration was 67,4341, 26,1198 households, of which 24,8321 (37% of the total population) and Heungdeok-gu were 42,6020 (the total population) 63%). In 1963 and 1983, part of Cheongwon-gun was incorporated into Cheongju-si, and the total area increased 8.4 times. In 2003, due to the implementation of the grand countermeasure system, the number of classes was significantly reduced.
question: What is the area of ​​Cheongju, South Korea?
answers.text: 153.45km2