These prefecture-level divisions are in turn subdivided into 102 county-level divisions, including 22 districts, 11 county-level cities, 17 counties, 49 banners, and 3 autonomous banners. Those are in turn divided into 1425 township-level divisions, including 532 towns, 407 townships, 277 sumu, eighteen ethnic townships, one ethnic sumu, and 190 subdistricts. At the end of 2017, the total population of Inner-Mongolia is 25.29 million.