1964 United States presidential election in New Hampshire was overwhelmingly won by Democratic nominees, and LBJ won in nine counties.
New Hampshire was won overwhelmingly by the Democratic nominees, incumbent President Lyndon B. Johnson of Texas and his running mate Senator Hubert H. Humphrey of Minnesota. Belknap 57.59% Cheshire 69.58% Coos 71.09% Grafton 59.76% Hillsborough 67.12% Merrimack 61.20% Rockingham 58.30% Strafford 68.01% Sullivan 68.85% Carroll 45.01% 
