Lhokseumawe, is the second largest city in Aceh province, Indonesia, having recently overtaken Langsa. 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 2023 was 196,067. The city is a key regional centre important for the economy of Aceh.