This question especially goes to the non-Americans for a non-biased perspective. Feel free to answer anyways, just make sure to mention that you're American if you do.

California, easily. No competition.
I'd say Texas is #2.
Definitely not New York, because it's mostly known for New York City, not the state.
Not Florida either.

I mean the number of songs about California alone:
Hotel California
California Calling
California Gurls
California King Bed (sorta)
California Dreaming
Gone to California (Pink)
Dani California
Californication
California Love (2Pac)

^ these are just some off my iTunes

I live in California, so I will pick it.

New York and Texas are runner-ups since Beyonce was born in one and she now lives in the other.

Colorado

Forreal though, California. Our most populated state And Texas

Texas.

I'm not American. I think it's all the accent, cowboy and western stuff, and it's generally just very well known in terms of iconism. I'd also argue for Hawaii, New Jersey, and California, I guess.

But for NY I would say it's more for the city than the state, no?

New York duh - New Yorker

New Jersey and its not even a question.

New York

NYC and my home NJ. We are mentioned in every movie.... For all the bad reasons but who cares! And we have Bruce Springsteen! Enough said.

Florida


NY or CA

NYC is not a state though

So. That doesn't make it iconic


Anyway, easily California.

People are getting New York state and New York City mixed up

But the city is in the state.

You tried it. Don't nobody give a damn about Texas.
- NY is the only correct answer Our 5 boroughs are iconic when will the others

California, Texas and Florida and I'm not from the US

I know but ny state isn't iconic. NYC is.