an incorporated administrative district established by state charter; "the city raised the tax rate"

a Borough incorporate, which hath, or hath had, a Bishop

a highly autonomous incorporated area within acounty

a highly autonomous incorporated area within a county

means the incorporated limits of the City of Tucson, Arizona.

Type of incorporated place in 49 states and the District of Columbia. In 23 states, some or all cities are not part of any MCD, and the Census Bureau also treats these as county subdivisions, statistically equivalent to MCDs.