Lhokseumawe, is the third largest city (by population) in Aceh province, Indonesia. The city covers an area of 181.06 square kilometres, and had a population of 171,163 at the 2010 census and 188,713 at the 2020 census; the official estimate as at mid 2022 was 191,396. The city is a key regional centre important for the economy of Aceh.