According to exit polling in ten key states of the 2024 presidential election in the United States, 57 percent of surveyed white voters reported voting for Donald Trump. In contrast, 85 percent of Black voters reported voting for Kamala Harris.

Between 1964 and 2020, turnout among black voters in U.S. presidential elections fluctuated between 48 and 62 percent, with the highest turnouts coming in 2008 and 2012, when Barack Obama (the first African American candidate from a major party) was the Democratic candidate. Voter turnout has always been lowest among those under 25 years of age, although younger black voters did participate in high numbers in the 1960s, during the civil rights movement, and again in 2008, during Obama's first election campaign; young black voters also participated in higher numbers than white voters of the same age between 2000 and 2012.

In 1964, black voters over the age of 65 voted at a similar rate to those in the 18 to 24 bracket, however they have consistently had the highest turnout rates among black voters in recent years, overtaking voters in the 45 to 64 years bracket (whose voting rate has consistently been between 60 and 70 percent) in the 1996 election.

According to exit polling in ten key states of the 2024 presidential election in the United States, Donald Trump received the most support from white voters between the ages of 45 and 64. In comparison, 84 percent of Black voters between the ages of 18 and 29 reported voting for Kamala Harris.

In 2024, Black Americans are estimated to make up almost 14 percent of all eligible voters in the United States, the highest percentage in U.S. election history. While relatively similar from the past few years, the rate has continued to climb since 2008, when only 12.7 percent of all U.S. eligible voters were Black.

United States presidential elections are quadrennial elections that decide who will be the President and Vice President of the United States for the next four years. Voter turnout has ranged between 54 and 70 percent since 1964, with white voters having the highest voter turnout rate (particularly when those of Hispanic descent are excluded). In recent decades, turnout among black voters has got much closer to the national average, and in 2008 and 2012, the turnout among black voters was higher than the national average, exceeded only by non-Hispanic white voters; this has been attributed to Barack Obama's nomination as the Democratic nominee in these years, where he was the first African American candidate to run as a major party's nominee. Turnout among Asian and Hispanic voters is much lower than the national average, and turnout has even been below half of the national average in some elections. This has been attributed to a variety of factors, such as the absence of voting tradition in some communities or families, the concentration of Asian and Hispanic communities in urban (non-swing) areas, and a disproportionate number of young people (who are less likely to vote).

In the 2020 election, around 42.8 percent of Asian voters exercised their right to vote. An additional 57.7 percent of Black voters voted. Voting rates have generally declined in presidential elections since 1996.

Since 1824, when the popular vote was first used to determine the overall winner in U.S. presidential elections, the share of the population who participate in these elections has gradually increased. Despite this increase, participation has never reached half of the total population; partly due to the share of the population below the voting age of eighteen, but also as many potential voters above the age of eighteen do not take part, or are ineligible to vote. For example, in the 2016 election, approximately twenty million U.S. adults were ineligible to vote, while over 94 million simply did not participate; in this election, Donald Trump won the electoral college with 63 million votes, which means that 19.4 percent of the total U.S. population (or 27.3 percent of eligible voters) voted for the current president.

Development throughout history

While the figures for the 2016 election may appear low, over 42 percent of the total population participated in this election, which was the third highest participation rate ever recorded (after the 2008 and 2020 elections). In the first election decided by a popular vote in 1824, only 350 thousand votes were cast from a total population of 10.6 million, although this increased to over four million votes by the 1856 election, as restrictions that applied to non-property holding white males were gradually lifted. Participation levels then dropped during the Civil War and Reconstruction era, as those who lived in Confederate states could not vote in 1864, and many white southerners were restricted or discouraged in the following election. Although universal suffrage was granted to black males in the wake of the Civil War, the majority of black Americans lived in the southern states, where lawmakers introduced Jim Crow laws in the late 1800s to suppress and disenfranchise the black vote, as well as poor white voters.

The next major milestone was the introduction of women's suffrage in 1920, which saw voter participation increase by seven million votes (or seven percent) between the 1916 and 1920 elections. Between the 1910s and 1970s, the Great Migration saw many black Americans move away from the south to northern and western states, where they faced fewer obstacles when voting and greater economic mobility. This period of black migration began to decline in the 1960s and 1970s, during which time many Jim Crow laws were repealed in the south, through legislation such as the Voting Rights Act of 1965. Female participation also grew gradually, and has exceeded male voting participation in all elections since the 1980s. The minimum voting age was lowered from 21 to 18 in all states in 1971, although this seemingly had a minimal impact on the short-term trajectory of voter participation.

Recent elections

The 1992 election was the first in which more than one hundred million votes were cast, which was almost 41 percent of the total population. All elections since 2004 have also had more than one hundred million votes cast, which has again been more than forty percent of the total population. Another key factor in the increase in voter participation is the fact that people are living longer than ever before, and that those aged 65 and over have had the highest turnout levels since 1992. While some figures may be subject to change, the 2020 election set new records for voter turnout. Despite the global coronavirus pandemic, which many thought could cause the lowest turnout in decades, a record number of voters cast their ballots early or by mail, setting a new record of votes just shy of 160 million. In the 2020 election, Joe Biden and Donald Trump received 81.3 million and 74.2 million votes respectively, both beating Barack Obama's previous record of 69.3 million ballots in 2008.

In U.S. presidential elections since 1964, voters in the 18 to 24 age bracket have traditionally had the lowest turnout rates among all ethnicities. From 1964 until 1996, white voters in this age bracket had the highest turnout rates of the four major ethnic groups in the U.S., particularly those of non-Hispanic origin. However participation was highest among young Black voters in 2008 and 2012, during the elections where Barack Obama, the U.S.' first African-American major party candidate, was nominated. Young Asian American and Hispanic voters generally have the lowest turnout rates, and were frequently below half of the overall 18 to 24 turnout before the 2000s.