How many cities in the US have at least one subway station?

[Hamilton]

Originally Posted by emathias

Also, Newark has a subway and there are subway PATH stops in places like Jersey City. I'm not familiar enough with PATH or New Jersey to name any other cities that might have one underground PATH station, though.

Hudson Bergen Light Rail: Union City has one underground stop (Bergenline Ave). I believe it's ~150 feet below the Palisades.

PATH: Hoboken has one underground stop (Hoboken Terminal) and Jersey City has 3-4 underground stops (Newport, Exchange Pl, Grove St, and, debatably, Journal Square)

Newark City Subway (aka Newark Light Rail): Newark has 4 underground stops (Warren St, Washington St, Military Park, and Newark Penn Station)