In 1960, 9.2 million people, or 37% of the national population, lived in urbanized areas, including about 7 million people (28%) in cities (-si districts) and 2.26 million people in -eup districts, where the -gun district offices were located. The urban population has increased significantly since the late 1960s. Ten years later, in 1970, the proportion of the population of -eup districts (9.1%) was similar to that of ten years ago, but the population of -si areas (12.9 million) nearly doubled. As a result, the population of -si and -eup areas accounted for 50.2% of the national population, becoming the majority. The urban population has increased rapidly, and as of 2010, the population of -si districts was 82% of the national population, and the population of -si and -eup districts was 90.7%. According to the 2020 Census, 91% of the population lives in -si/-eup areas, and the population living in -si districts accounts for 81.2%.