How many cities does Yilan have in Taiwan Province Province?

Non-sixth-tier cities. Yilan is a county in Taiwan Province Province, located in the northeast of Taiwan Province Island, and not one of the big cities in Taiwan Province Province. Taiwan Province Province divides cities into six-tier cities and non-six-tier cities. Sixth-tier cities refer to Taipei, New Taipei, Taoyuan, Taichung, Tainan and Kaohsiung. These cities are populous and mature. Although Yilan is a county, its urbanization level is relatively low, and its population and economic scale are not as good as those of sixth-tier cities. So Yilan is a city.