County can cause trouble in the US as well, as not all cities are part of a county. In Virginia, cities are separate county-level entities, so at my old address, when people needed to know my county, the answer was "Alexandria City." Computers were mostly up to speed with this, but it sometimes confused humans from out of state when they asked.
A fun example is Fairfax, which is both a county and a city, and while the city is surrounded by the county, it isn't part of the county. Weirder still, Fairfax, the city, is the county seat for Fairfax, the county.
Note that city and state isn't really a problem for residents of New York. The city is still in the state, and the official address will read "New York, NY," which is repetitive but correct.
A fun example is Fairfax, which is both a county and a city, and while the city is surrounded by the county, it isn't part of the county. Weirder still, Fairfax, the city, is the county seat for Fairfax, the county.
Note that city and state isn't really a problem for residents of New York. The city is still in the state, and the official address will read "New York, NY," which is repetitive but correct.