Ontario

===Administrative divisions===
[[File:Ontario census divisions by type.png|thumb|275px|alt=Ontario's census divisions by type from the 2011 federal census|Map of the counties, regional municipalities, districts, and municipalities of Ontario.]]

Ontario has three types of [[List of census divisions of Ontario|first-level administrative divisions]]. They include [[List of census divisions of Ontario#Single-tier municipalities|single-tier municipalities]], upper-tier municipalities (which may be in the form of either [[List of regional municipalities in Ontario|regional municipalities]] or [[United counties|counties]]), and [[Districts of Ontario|district]]s. Upper-tier municipalities and districts are made up of smaller municipalities and other types of administrative divisions.

Administrative divisions differ primarily in the services that they provide to their residents, with the differing structures of these administrative regions resulting in disparities among Ontario's different regions. The administrative regions of Ontario are roughly coterminous with the [[List of census divisions of Ontario|census divisions]] used by [[Statistics Canada]], although some exceptions do exist.{{notetag|[[Statistics Canada]] treats [[Norfolk County, Ontario|Norfolk County]] and [[Haldimand County]] as one single census division; the [[County of Brant]] and [[Brantford|City of Brantford]] are also treated as one single census division. There would otherwise be 51 census divisions instead of the 49 official ones used by Statistics Canada.|name=Haldimand-Norfolk|group=lower-alpha}}