New York’s 17th congressional district, or NY-17, is a Hudson Valley seat in southern New York that includes all of Rockland and Putnam counties, most of northern Westchester County, and parts of southern Dutchess County. It is a politically competitive district, often described as a purple, swing or battleground seat, because it has a mix of suburban, ex-urban, and commuter communities with different voting patterns.

The district has roughly 777,627 residents, and many households are multilingual. Its economy and daily life are shaped by long commutes into the New York City region, relatively high home values, and a strong share of homeowners.