1964 United States presidential election in Ohio

The 1964 United States presidential election in Ohio was held on November 3, 1964, as part of the 1964 United States presidential election. Voters chose 26 representatives, or electors, to the Electoral College, who voted for President and Vice President.

Ohio was overwhelmingly won by the Democratic nominee, incumbent President Lyndon B. Johnson, who carried the state with 62.94% of the vote against Republican nominee Barry Goldwater's 37.06%. The 1964 election marked the best performance for the Democratic Party in the state, as it was the only time a Democratic candidate for president won it with over 60% of the popular vote (and the last time a nominee from either party has done so), the last time the Democratic candidate carried more counties than the Republican candidate, and the last time the margin of victory for the Democratic candidate was in double digits. This is also the only time where a presidential candidate in Ohio had a winning margin that exceeded one million votes.

This is the only time in which Clinton, Warren and Geauga counties have voted for a Democratic presidential candidate. Ashland, Auglaize, Butler, Champaign, Clermont, Crawford, Darke, Defiance, Fairfield, Fayette, Greene, Hardin, Henry, Highland, Holmes, Knox, Licking, Logan, Madison, Marion, Medina, Miami, Morgan, Morrow, Muskingum, Paulding, Pickaway, Preble, Putnam, Richland, Shelby, Van Wert, Washington, Wayne, Williams, and Wyandot counties have never voted Democratic since, while Franklin County did not vote Democratic again until 1996 and Hamilton County did not do so again until 2008.

Counties that flipped from Republican to Democratic
• Adams

• Ashland

• Ashtabula

• Athens

• Auglaize

• Brown

• Butler

• Carroll

• Champaign

• Clark

• Clermont

• Clinton

• Columbiana

• Coshocton

• Crawford

• Darke

• Defiance

• Erie

• Fairfield

• Fayette

• Franklin

• Gallia

• Geauga

• Greene

• Guernsey

• Hamilton

• Hardin

• Harrison

• Henry

• Highland

• Hocking

• Holmes

• Huron

• Jackson

• Knox

• Lawrence

• Licking

• Logan

• Madison

• Marion

• Medina

• Meigs

• Mercer

• Miami

• Monroe

• Montgomery

• Morgan

• Morrow

• Muskingum

• Noble

• Ottawa

• Paulding

• Perry

• Pickaway

• Portage

• Preble

• Putnam

• Richland

• Ross

• Sandusky

• Scioto

• Seneca

• Shelby

• Stark

• Tuscarawas

• Van Wert

• Vinton

• Warren

• Washington

• Wayne

• Williams

• Wood

• Wyandot