The New York Times has an article, A Beach Shared by a Tight-Knit Clan, and slide show celebrating the serene beachfront Neponsit neighborhood in Queens, which is in Queens kind of like the Green Zone is in Baghdad. The beach is supposedly public, but there's a big chainlink fence on the sand separating it from Jacob Riis Beach, where there's public parking. No parking is allowed on the neighborhood streets during beach season, so to go to the beach you pretty much have to know somebody who lives there who will let you park in his driveway:

According to census data, the population is about 2,000; 95 percent are white, 2 percent Asian, 2 percent Hispanic, and fewer than 1 percent black or multiracial.