Interestingly I live in Hopatcong in Sussex County yet I get NYC stations clearly. Putnam County doesn't get nyc stations.You double posted this, but the answer is the same. WINS and WCBS have the same power, 50 kw, which is the U.S. maximum.
To a New York City station, "tristate" means the New York Metro Survey Area, which is NE New Jersey, NYC, Long Island and the boroughs, a few counties up the Hudson up to Putnam, and a tiny piece of a county in CT. Anything outside that really does not matter to them.
Here is a map. The upper red zone is the New York City radio market per Nielsen.
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