New Hampshire's 1st State Senate district is one of 24 districts in the New Hampshire Senate. It has been represented by Republican David Rochefort since 2024.
District 1 covers far northern New Hampshire, including the Great North Woods region bordering Canada. It is located entirely within New Hampshire's 2nd congressional district. It borders the states of Maine and Vermont, as well as the Canadian province of Quebec. At over 2,500 square miles, it is the largest state legislative district in New Hampshire.
Coös County - 100% of county
Grafton County - 27% of county
Elections prior to 2022 were held under different district lines.
Results are of elections held under 2022 district lines.