Bronxville is a village in Westchester County, New York, United States, located approximately 15 miles (24 km) north of Midtown Manhattan. It is part of the town of Eastchester. The village comprises one square mile (2.5 km2) of land in its entirety, approximately 20% of the town of Eastchester. As of the 2020 U.S. census, Bronxville had a population of 6,656. In 2016, Bronxville was rated by CNBC as the most expensive suburb of any of the U.S. ten largest cities, with a median home value of $2.33 million. It was ranked eighth in Bloomberg's "America's 100 Richest Places" in 2017 and 2018 and ninth in 2019 and is the second-richest town in the state of New York behind Scarsdale.

Westchester County is located in the U.S. state of New York. It is the seventh most populous county in the State of New York and the most populous north of New York City. According to the 2020 United States Census, the county had a population of 1,004,456, its highest decennial count ever and an increase of 55,344 (5.8%) from the 949,113 counted in 2010. Westchester covers an area of 450 square miles (1,200 km2), consisting of six cities, 19 towns, and 23 villages. Established in 1683, Westchester was named after the city of Chester, England. The county seat is the city of White Plains, while the most populous municipality in the county is the city of Yonkers, with 211,569 residents per the 2020 census. The county is part of the Hudson Valley region of the state.