[wat10000]

New York is an obvious example of two entities of the same name, with the “City of” version being a small part of the larger version. It’s just on a much bigger scale.

[onionisafruit]

New Orleans is a city, but City of New Orleans is a train

[wat10000]

And the other terminus is Chicago, thus bringing us full circle. Line. Loop. Whatever.

[IAmBroom]

The (US) Port of Toledo wants to join the discussion.

Even though a large part of its inhabitants don't realize it has a port.

[wat10000]

You'll have to be more specific, there are at least two, a couple thousand miles apart.

I like Fairfax, VA. It is surrounded by, but not part of, Fairfax County, VA. Despite this, it still serves as the county seat.