We use “in” for cities. states, countries, and rooms:

I live in New York City.

I live in New York State.

I live in the United States.

I’m in the bathroom.

We use “at” for places like work, home, school, or stores – and also for addresses.

I’m at work.

I’m at home.

I study English at University Settlement.

University Settlement is at 184 Eldridge Street.

I’m at Macy’s.

We use on for floors, islands, and streets:

I live on the second floor.

The Statue of Liberty is on Liberty Island.

University Settlement is on Eldridge Street.

I live on 12th Avenue.

Watch this video to learn more, and afterwards take the quiz to test your understanding: