Metropolitan Transit Authority of Harris County was created on 1979-01-01.
Adams County Transit Authority was created in 1981.
Indiana County Transit Authority was created in 1979.
Birmingham-Jefferson County Transit Authority was created in 1972.
Madison County Transit was created in 1980.
Strathcona County Transit was created in 1977.
Sarasota County Area Transit was created in 1979.
Detroit Metropolitan Wayne County Airport was created in 1930.
Metropolitan School District of Warren County was created in 1973-01.
Milwaukee County Transit System was created on 1975-06-01.
Greater London isn't in any county. It is its own Metropolitan Authority.
Orange County Fire Authority was created in 1995.
Orange County Transportation Authority was created in 1991.