Mount Vernon is a city in
Westchester County, New YorkWestchester County is a primarily suburban county located in the U.S. state of New York. Westchester covers an area of 450 square miles and has a diverse population of approximately 950,000, residing in 45 municipalities...
. It lies on the border of the
New York CityNew York is the most populous city in the United States, and the center of the New York metropolitan area, which is among the most populous urban areas in the world. A leading global city, New York exerts a powerful influence over worldwide commerce, finance, culture, fashion and entertainment...
boroughNew York City, one of the largest cities in the world, is segmented into five boroughs. A borough is a unique form of government that administers the five fundamental constituent parts of the consolidated city...
of
the Bronx