The 12 Biggest Presidential Landslides in American History

What counts as a landslide

The word gets used loosely. This list does not. A landslide here means overwhelming dominance on both instruments that measure a presidential election: the Electoral College and the national popular vote. The top four entries each cleared 90 percent of the electoral vote in a genuinely contested race, something that has happened only four times since organized two-party competition began. The framework pays no attention to which party a president belonged to. Franklin Roosevelt and Richard Nixon sit side by side at the top because the certified numbers put them there, not because of anything either man stood for.

One structural note matters. Electoral vote share can be inflated by a split opposition. Woodrow Wilson won 435 of 531 electoral votes in 1912, an 82 percent share, while winning just 41.8 percent of the popular vote, because Theodore Roosevelt and William Howard Taft divided the other side (National Archives, Electoral College results, 1912). That is a fascinating election. It is not a landslide of voter consensus, and it is excluded from the ranking on those grounds.

The subscores make the definition operational. Every contested entry is measured on four components: the electoral vote share, the popular vote margin, the fraction of states carried, and the winner's outright popular vote percentage. A true landslide scores high on all four at once. That is why the walkover elections, Washington in 1789 and Monroe in 1820, sit at the bottom of the list despite perfect or near-perfect electoral shares: their contested-race subscore is near zero because there was no organized opponent to defeat. A meter that treats an unopposed coronation as equal to a 49-state rout would be measuring the wrong thing, and this ranking refuses to.

The three 49-state class victories

Three elections form the summit. In 1936 Franklin Roosevelt won 523 of 531 electoral votes against Alf Landon, who carried only Maine and Vermont. Roosevelt's 60.8 percent of the popular vote and 24.3-point margin came with roughly 27.75 million votes to Landon's 16.68 million (Clerk of the House, election statistics, 1936). In 1972 Richard Nixon carried 49 states against George McGovern, winning 60.7 percent and a raw margin of nearly 18 million votes, then the largest ever recorded. In 1984 Ronald Reagan carried 49 states against Walter Mondale and won 525 electoral votes, the highest absolute total in history, available because the College had grown to 538 votes.

Ordering the three is a judgment the methodology makes openly. Roosevelt ranks first because his electoral share, 98.5 percent, and his popular margin, 24.3 points, both exceed the others. Nixon edges Reagan for second because his popular vote margin was five points wider, 23.2 against 18.2, even though Reagan's electoral share was fractionally higher. Reasonable people could flip ranks two and three. Nobody working from the certified returns can dislodge 1936 from first.

Each of the three carried an asterisk of its own that the numbers do not show. Roosevelt's 1936 sweep came in the middle of the Depression, a referendum on the New Deal that voters answered by handing him all but two states. Nixon's 1972 rout was already shadowed by the Watergate break-in of that June, and the president who carried 49 states resigned twenty-one months later. Reagan's 1984 win, the record 525 electoral votes, came against a Democratic ticket that had conceded the map early and staked its campaign on a single honest promise to raise taxes. The certified totals rank them; the circumstances explain why the top of a landslide list is not the same as the top of a greatness list. Dominance at the ballot box is a measurement, not a verdict on a presidency.

The record holders nobody remembers correctly

Two popular vote records live outside the top three, and both surprise readers. The largest popular vote margin in American history belongs to Warren Harding, whose 1920 return-to-normalcy campaign beat James Cox 60.3 percent to 34.1, a 26.2-point spread that no candidate has matched since (Clerk of the House, election statistics, 1920). Harding's electoral share was a comparatively modest 76 percent because the Solid South still voted Democratic almost regardless of the national tide, which is why he ranks fifth rather than first.

The highest popular vote share ever recorded in a contested race belongs to Lyndon Johnson: 61.05 percent in 1964, a hair above Roosevelt's 60.8 and Harding's 60.3 (American Presidency Project, election statistics). Johnson won 486 electoral votes, but Barry Goldwater's five Deep South states plus Arizona kept the electoral share at 90.3 percent. Those five states, carried by a Republican for the first time since Reconstruction in most cases, marked the beginning of a durable regional realignment that the certified returns of the next half century confirm.

Raw vote margins tell a third story, and the record holder there is Nixon. His 1972 margin of roughly 18.0 million votes over McGovern remains the largest absolute vote gap ever certified, ahead of Reagan's 16.9 million in 1984 and Johnson's 16.0 million in 1964 (Clerk of the House, election statistics). The largest raw vote total for any candidate, by contrast, belongs to Joe Biden's 81.28 million in 2020, an election that was nowhere near a landslide, because the electorate itself had grown to more than 158 million voters. Raw totals measure the size of the country; margins and shares measure the verdict. This ranking uses the verdict.

These three records, held by three different men on three different measures, are the clearest illustration of why a landslide needs more than one number. Harding won the largest share of the electorate to reject his opponent, yet ranks fifth because a fifth of the map was closed to him before a single vote was cast. Johnson persuaded the highest percentage of voters ever to pick him in a real contest, yet ranks fourth because six states went the other way. Nixon opened the widest raw gap ever certified, yet ranks second because Roosevelt's 1936 sweep was broader still. No single statistic crowns a landslide. The ranking surfaces all of them per entry precisely so a reader can see that the record popular margin, the record popular share, and the record electoral total belong to three separate elections, none of which finished first.

The early republic: sweeps without contests

The gaudiest electoral percentages in the record come from elections that were barely elections. George Washington was elected unanimously twice, 69 electors in 1789 and 132 in 1792, the only unanimous choices in American history (National Archives). James Monroe won 231 of 232 electoral votes in 1820 during the one-party Era of Good Feelings; the lone dissent came from New Hampshire elector William Plumer, who voted for John Quincy Adams. The popular legend that Plumer acted to preserve Washington's unanimity is not supported by his own papers, which show he simply preferred Adams. These entries sit at ranks eleven and twelve, below smaller contested margins, because a ruler that cannot distinguish a walkover from a war is measuring the wrong thing. Thomas Jefferson's 1804 reelection, by contrast, was a real contest against a real Federalist ticket, and his 162 to 14 result earns its place in the top half on merit.

The distinction is not pedantic. It goes to the definition of a landslide as a verdict rather than a formality. Washington faced no opponent because the country agreed on him; the unanimous count records consensus about a man, not a decision between rival programs. Monroe faced no opponent because the Federalist Party had collapsed after the War of 1812 and the Hartford Convention, leaving the field to a single party during what contemporaries called the Era of Good Feelings. Neither election asked voters to choose, and a landslide is fundamentally a lopsided choice. Jefferson's 1804 win, by contrast, retired a Federalist ticket led by Charles Cotesworth Pinckney to three states and a fragment of a fourth, a genuine rout of a genuine opponent, which is why it ranks seventh among contested landslides while the two walkovers sit at the bottom despite their gaudier electoral percentages.

What landslides did not guarantee

The record is blunt about what a landslide buys. Nixon resigned twenty-one months after carrying 49 states. Harding died in office in 1923 with his administration's Teapot Dome scandal about to surface. Johnson's 61 percent evaporated so completely that he declined to seek renomination four years later. Hoover went from 444 electoral votes in 1928 to 59 in 1932, the fastest collapse of a landslide winner ever certified. Only Roosevelt in 1936 and Reagan in 1984 converted their blowouts into stable second terms, and Roosevelt's was immediately scarred by the failed court-packing plan of 1937.

The other pattern worth stating plainly: no election since 1984 appears on this list. Every winner from 1988 through 2024 took less than 55 percent of the popular vote, and only one, in 1988, cleared 400 electoral votes. The landslide, as a feature of American presidential politics, has been absent for four decades. If that persistence of close division produces discomfort, the discomfort belongs to the reader, not the data.

The measures that disagree, and why

Electoral share and popular margin usually move together, but the subscores show where they part company, and those splits are where the ranking earns its judgment. Harding holds the record popular margin at 26.2 points yet ranks only fifth, because the Solid South denied him roughly a fifth of the electoral map no matter how lopsided the national vote (Clerk of the House, election statistics, 1920). Johnson holds the record popular share at 61.05 percent yet ranks fourth, because Goldwater's Deep South breakthrough cost him six states (American Presidency Project, election statistics, 1964). Both records are real. Neither produced a top-three finish, because the Electoral College rewards geographic breadth, not raw national margin.

The reverse case is Reagan in 1984. His 18.2-point popular margin is smaller than Harding's, Johnson's, Roosevelt's 1936, and Nixon's, yet he ranks third and holds the record for most electoral votes ever, 525, because his win was distributed across 49 states with almost no regional holdout (National Archives, Electoral College results, 1984). Breadth beat depth. A candidate who wins 58 percent everywhere accumulates more electoral votes than a candidate who wins 65 percent in one region and loses another outright. That structural fact is why the top of this list is anchored by the broadest wins, 1936, 1972, and 1984, rather than by the largest popular margins.

The vanishing landslide

The single most important pattern in this dataset is not any entry on it. It is the absence of any entry after 1984. For a century, roughly every generation produced at least one blowout: 1904, 1920, 1936, 1964, 1972, 1984. Then they stopped. The 1988 election, in which George H. W. Bush won 426 electoral votes and 53.4 percent of the popular vote, was the last to clear 400 electoral votes, and it falls short of this list's thresholds on both measures (American Presidency Project, election statistics, 1988). Every election since has been won with under 55 percent of the popular vote.

The cause is structural, not personal. The share of states that are genuinely competitive has shrunk, and the two parties have converged on near-even national support, so even a clear winner now assembles a majority from a narrow band of swing states rather than sweeping the map. The 2024 result illustrates the ceiling of the modern era: Donald Trump won all seven contested swing states and the national popular vote, a decisive win by any recent standard, yet took 312 electoral votes and 49.8 percent of the popular vote, nowhere near the thresholds that define a landslide here (National Archives, 2024 Electoral College Results; FEC). A modern sweep of the battlegrounds does not approach a 1936 or a 1984. The map that once produced 49-state routes no longer exists.