Ontario's 444 municipalities cover only 17 per cent of its land mass, yet are home to 99 per cent of its population. The province is the most populous in Canada, with 13,448,494 residents as of the 2016 census, and is third-largest in land area. According to Ontario's Municipal Act, 2001, a municipality is "a geographic area whose inhabitants are incorporated". They provide local or regional municipal government services within either a single-tier or shared two-tier municipal structure. The three municipality types include upper and lower-tier municipalities within the two-tier structure, and single-tier municipalities (unitary authorities) that are exempt from the two-tier structure. Ontario's largest municipality by population is the City of Toronto (skyline pictured), with 2,731,571 residents, while the largest by land area is the City of Greater Sudbury, at 3,228.35 km2 (1,246.47 sq mi). (Full list...)