Redistricting
The district was a Brooklyn-based seat until 1982, when it was realigned to cover the East Side of Manhattan. Following the 1992 redistricting, it became the upper Manhattan seat previously designated the 19th District and the 18th District. After the 2012 redistricting, the 15th became the Bronx's primary district.
Read more about this topic: New York's 15th Congressional District