[2] Wykagyl consists primarily of sprawling, residential parks and planned communities built in the early to mid-20th century, featuring large period-style homes and well-landscaped lots.

At the center of the community is an 18-hole golf course and country club and a small business district of retail stores and offices, garden apartment complexes and condominium developments, public and private educational institutions, and assorted houses of worship.

[5] Around the end of the 19th century, this area of "Upper Rochelle" was still primarily farmland with the exception of the Wykagyl Country Club, which moved to its current site in 1905.

A syndicate of bankers and investors began amassing expansive tracts of forest and farmland surrounding the club, eventually incorporating under the name Wykagyl Reservation.

The reservation was ideally located to take advantage of the new transportation facilities afforded by the recently completed New York, Westchester and Boston Railway commuter line through the area.

Alfred Feltheimer, the architect who designed and named the railroad's stations, chose "Wykagyl" after the golf club.

The scene where Karen is on a pay phone calling Henry and crying about her next-door neighbor bothering her was filmed in the parking lot next to Wykagyl Country Club.