Five counties wearing one city's name
Manhattan, the Bronx, Brooklyn, Queens and Staten Island are five separate counties, and each numbers its own blocks and lots from one. The borough is the first digit of every BBL for that reason: 1 for Manhattan, 2 the Bronx, 3 Brooklyn, 4 Queens, 5 Staten Island.
Which is why the same address exists five times
350 Broadway is real in more than one borough. So is 100 Main Street. Asked without a borough, the register returns several genuine answers and there is no honest way to pick one - so this product asks you rather than choosing. A wrong borough is not a near miss; it is a confident report about a stranger's building.
What counts as naming it
- The borough itself: Brooklyn, Queens, the Bronx, Staten Island, Manhattan.
- A ZIP code, which settles it on its own - 10118 is Manhattan, 11217 Brooklyn.
- "New York, NY", which is Manhattan's postal name and has been since before the other four joined it.
- A neighbourhood the postal service treats as a city in its own right: Astoria, Flushing, Long Island City, Jamaica.
And a borough's name is also a street's name
Richmond Road on Staten Island, Queens Boulevard, Brooklyn Avenue. The word appearing in an address does not make it the borough, so only a trailing one is read that way. This is not hypothetical: reading it wherever it appeared turned "2250 Richmond Rd" into "2250 Rd" and lost a real address.
Counts run 12 September 2026.