New York's 148th State Assembly district is one of the 150 districts in the New York State Assembly. It has been represented by former Congressman Joe Sempolinski since 2025, succeeding Joseph Giglio.
District 148 contains all of Allegany and Cattaraugus counties and portions of Steuben County.
The district is entirely within New York's 23rd congressional district, and overlaps the 57th and 58th districts of the New York State Senate.