Westchester County

Westchester County is located in the U.S. state of New York. Situated in the Hudson Valley, Westchester covers an area of 450 square miles, consisting of six cities, 19 towns, and 23 villages. Westchester County is one of the centrally located counties within the New York metropolitan area. The county is positioned with New York City, plus Nassau and Suffolk counties (on Long Island, across Long Island Sound), to its south; Putnam County to its north; Fairfield County, Connecticut to its east; and Rockland County and Bergen County, New Jersey across the Hudson River to the west. Westchester was the first suburban area of its scale in the world to develop, due mostly to the upper-middle-class development of entire communities in the late 19th century and the subsequent rapid population growth.

The annual per capita income for Westchester was $67,813 in 2011. The 2011 median household income of $77,006 was the fifth highest in New York (after Nassau, Putnam, Suffolk, and Rockland counties) and the 47th highest in the United States. By 2014, the county's median household income had risen to $83,422. Westchester County ranks second in the state after New York County for median income per person, with a higher concentration of incomes in smaller households.

source: wikipedia.org