1. Economic development level: First-tier cities are generally the most advanced and prosperous cities in Korea; Second-tier cities are relatively backward, while third-tier cities are in the least developed stage.
2. Population size: First-tier cities have the largest population, generally in10 million or dense urban agglomerations, while second-tier cities have relatively small populations and even fewer third-tier cities.
3. Cultural and educational resources: First-tier cities generally have relatively complete cultural and educational resources, including large museums, libraries, concert halls and cinemas. The corresponding resources in second-and third-tier cities are relatively scarce. Take the classification of Korea as an example: first-tier cities: Seoul, Busan, Guangzhou and Ulsan. Second-tier cities: Yuanzhou, gangwon, Cheongju, Chungcheongnam-do, Jeolla-do, Anton, Gyeongsangbuk-do, etc. Third-tier cities: Chuncheon City in gangwon, Heshun City in Jeollanam-do, Xian 'an City in Gyeongsangnam-do, etc.
Korean cities rank in the top three.
1, Seoul Special City, referred to as Seoul. Needless to say, this is the capital of South Korea, ranking the tenth largest city in the world, with a population of about 654.38+000400 and an overall area of about 605.77 square kilometers. It is also a relatively large city on the Korean peninsula. It is also the center of Korea's politics, economy, science and technology, education and culture. Famous scenic spots include Myeong-dong, Dongdaemun, Gyeongbokgung Palace, and colleges include Seoul University and Korea University.
2. Sejong Special Autonomous City, referred to as Sejong City for short, is the administrative capital of South Korea, located at the junction of Yanqi County and Zhougong City in Chungcheongnam-do, South Korea. The population is about 340,500, and the total area is about 465.23 square kilometers. People there sometimes speak a little Sejong dialect besides Korean. Famous scenic spots include Xiongshuyuan and Jinyicheng, and well-known institutions include Hannan University.
3. Busan Metropolis, referred to as Busan. It is also a very familiar city. It is located at the southeast end of Korea, one of the largest ports and the second largest city in Korea, and one of the busiest port cities in the world. Historically, it has always been a link and bridge between the East Asian continent and marine culture. The population is about 3,532,896, with a total area of 769.82 square kilometers. Famous scenic spots include Yuntai and Guangfu Cave, and colleges include Busan University and Dongyi University.
The above contents refer to Baidu Encyclopedia-Korea.