What is is the population of the county that contains the Edwin H. Armstrong House?
Westchester County, New York Westchester County is a county in the U.S. state of New York. It is the second-most populous county on the mainland of New York, after the Bronx. According to the 2010 Census, the county had a population of 949,113, estimated to have increased by 2.7% to 974,542 by 2016. Situated in the Hudson Valley, Westchester covers an area of 450 sqmi , consisting of 6 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 an estimated 200,807 residents in 2016.
Skagit County, Washington Skagit County is a county in the U.S. state of Washington. As of the 2010 census, the population was 116,901. The county seat and largest city is Mount Vernon. The county was formed in 1883 from Whatcom County and is named for the Skagit Indian tribe, which has been indigenous to the area prior to European-American settlement.