See the whole election story.
Six decades of voters. A century of Congress. Party identity, representation, and state-by-state participation—beautifully charted from named sources, with the data underneath every view.
of U.S. adults identified as independent in Gallup's annual average—the highest in its series.
See the party identity chart →30permanent chart stories
9named primary publishers
1917–2025Congressional history
CSV + JSONdata behind every chart
What changed around 1971?
Seven official series. One shared timeline. No false promise that a date proves a cause.
The charts that explain the electorate.
Each view answers one plain-language question, carries its source and caveats, and opens into a permanent research page.
Voter turnout since 1964
In 2024, 59.3% of the voting-age population and 65.3% of citizens reported voting.
Explore the chart →How many Americans voted?
The 2024 CPS implies roughly 154.4 million voting-age people reported voting.
Explore the chart →Turnout by race and ethnicity
In 2024, citizen turnout estimates ranged from 50.6% for Hispanic citizens to 70.5% for White non-Hispanic citizens.
Explore the chart →Which states voted most?
District of Columbia had the highest estimated citizen voting rate in the 2024 Census table at 79.5%.
Explore the chart →America's party identity
Independents reached a record-high 45% of U.S. adults in Gallup's 2025 annual average.
Explore the chart →House seats by party
The 119th Congress began with 220 Republicans and 215 Democrats in the House.
Explore the chart →One page for every question.
Preview the shape of every dataset before opening its full interactive chart, source notes, and downloads.
Voting
11 chartsU.S. voter turnout rate, 1964–2024
The share of U.S. adults and citizens who reported voting in every federal election since 1964.
Open chart and data →Estimated number of reported voters in America, 1964–2024
A Census survey estimate of the number of voting-age Americans who reported voting in each federal election.
Open chart and data →U.S. voting-age population, 1964–2024
The Census estimate of U.S. residents age 18 and older in every federal election year since 1964.
Open chart and data →Estimated registered voters in America, 1966–2024
A Census survey estimate of the number of voting-age Americans who reported being registered in each federal election.
Open chart and data →Registered Americans who did not report voting, 1966–2024
The estimated number of voting-age Americans who reported being registered but did not report voting in each federal election.
Open chart and data →U.S. presidential election voter turnout, 1964–2024
The voting-age population share reporting that they voted in every presidential election since 1964.
Open chart and data →U.S. midterm election voter turnout, 1966–2022
The voting-age population share reporting that they voted in every federal midterm election since 1966.
Open chart and data →Presidential vs. midterm voter turnout, 1964–2024
The persistent turnout gap between presidential and midterm federal elections.
Open chart and data →U.S. voter registration rate, 1966–2024
The share of U.S. adults and citizens who reported being registered to vote.
Open chart and data →U.S. voter turnout by race and ethnicity, 1980–2024
Citizen voting rates for White non-Hispanic, Black, Asian, and Hispanic Americans.
Open chart and data →The gender gap in U.S. voter turnout, 1964–2024
Reported voter turnout rates for women and men across six decades of federal elections.
Open chart and data →States
1 chartsPublic opinion
4 chartsDemocrat, Republican, and independent identification, 1988–2025
Annual Gallup averages showing how U.S. adults identify politically.
Open chart and data →Party identification with independent leaners, 1991–2025
Gallup's annual measure of Republicans and Republican-leaning independents versus Democrats and Democratic-leaning independents.
Open chart and data →American political ideology, 1992–2025
Annual Gallup averages for Americans identifying as conservative, moderate, or liberal.
Open chart and data →Party identification by generation in 2025
How Gen Z, millennials, Gen X, baby boomers, and the Silent Generation identify politically.
Open chart and data →Congress
3 chartsParty control of the U.S. House, 1917–2025
Democratic, Republican, and other seats at the start of every Congress since 1917.
Open chart and data →Party control of the U.S. Senate, 1917–2025
Democratic, Republican, and independent seats in every Congress since 1917.
Open chart and data →How close has control of Congress been? 1917–2025
The gap between the two major parties as a share of each chamber's seats.
Open chart and data →Representation
4 chartsWomen serving in Congress, 1917–2025
The number of women serving in the House and Senate in every Congress since the first woman entered Congress.
Open chart and data →Women in Congress by political party, 1917–2025
The Democratic, Republican, and independent party composition of women serving in each Congress.
Open chart and data →Women as a share of Congress, 1917–2025
The percentage of House and Senate seats represented by women in every Congress since 1917.
Open chart and data →Women's representation in the House versus Senate, 1917–2025
The percentage of each congressional chamber represented by women over more than a century.
Open chart and data →Money & candidates
2 charts2026 federal candidate filing records by state
Identity-complete, indexable FEC candidate filing records for U.S. House and Senate grouped by state and territory.
Open chart and data →Reported 2026 federal candidate receipts by state
Available FEC total-receipts summaries for indexable 2026 House and Senate candidate records, grouped by office state.
Open chart and data →State government
2 chartsCurrent state legislative roles by state
Current state legislative role records in the Open States People snapshot, grouped by state and territory.
Open chart and data →Current state legislator party composition
The party labels attached to current state legislative role records, shown state by state.
Open chart and data →Local government
1 chartsElection results
2 chartsU.S. House election victory-margin distribution, 2022
Official 2022 U.S. House contests grouped by the final-round percentage-point gap between the top two published candidate totals.
Open chart and data →States with the most close U.S. House races in 2022
States ranked by the number of official 2022 U.S. House contests decided by fewer than five percentage points.
Open chart and data →Every chart begins with a named record.
Election.org transforms source data into readable views without hiding definitions, gaps, or methodology.
U.S. Census Bureau, Current Population Survey
Survey estimates of self-reported registration and voting among the voting-age population.
Open the source ↗1917–2027U.S. House of Representatives: History, Art & Archives
Party divisions reflect the results of the election and do not capture later changes during a Congress.
Open the source ↗1917–2027United States Senate Historical Office
Party divisions and caucus notes as published by the Senate.
Open the source ↗1988–2025Gallup
Annual U.S. adult survey averages. Gallup retains ownership of its polling data; charts are credited and linked.
Open the source ↗1917–2027Center for American Women and Politics, Rutgers University
Historical counts of women serving in Congress; historical figures generally reflect the conclusion of each Congress.
Open the source ↗2025–2026 cycleFederal Election Commission bulk data
Federal candidate master records and financial summaries. A filing record does not establish ballot qualification.
Open the source ↗Current sourced rolesOpen States People
CC0 current-role snapshot; party labels and chamber roles are preserved from the source.
Open the source ↗2025 Government Units ListingU.S. Census Bureau
Official entity inventory; it does not establish election method, officeholders, or exact service boundaries.
Open the source ↗2022 federal electionsFederal Election Commission, Federal Elections 2022
Official results compiled by the FEC from state and territory election offices; Election.org calculates margins from published final totals.
Open the source ↗