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Presidential Primary Results Explorer

This dashboard holds verified presidential primary results for every state and every cycle from 1976 through 2024. Compare two states head to head, check competitiveness scores, and see how each party’s nomination fight played out on the map. Every result traces to an official source: state election boards, the FEC, or verified aggregators, listed per entry.

Want the raw numbers instead? Browse the full archive at U.S. Primaries History, or see how nominations get decided on Path to Nomination. For national turnout and voting law history, see Turnout & Voting Laws.

Primary Results Explorer

Explore presidential primaries and general elections by year, state, party, turnout, margin, and winner. Filters update every chart and table instantly.

Note: Early elections predate modern popular-vote reporting. Records marked "Electoral vote only" are separated so comparisons stay historically honest.

🔍 Filters — results update automatically

Showing 2008–2024. Choose another period or click All years to load the full history.
Visible recordsAfter current filters
Election years shown
Popular vote recordsComparable records
Electoral-only recordsMostly early elections
Total popular votesPopular-vote records only
Avg. marginCompetitive races only
🏆

Closest race in selected state

Charts

Based on the active filter selection.

Winning party share

Share of filtered records won by each party.

Popular vote turnout trend

Total popular votes by year. Electoral-only records excluded.

Closest races

Smallest percentage-point margins in the selected range.

Top turnout records

Highest vote totals in the selected range.

Year-over-year margin momentum

Average winning margin per year. Select a state to show that state's trend.

Candidate longevity

Candidates who appeared in multiple election cycles.

Highest turnout
Closest race
Largest margin
Free

Explore the data

Filter, chart, and browse every presidential election from 1789 to 2024. Free for everyone.

Election Records

Sorted newest first. Use filters above to narrow the view.

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Tip: use "Closest races" tab to find the most competitive elections quickly.
YearStateTypeCategoryDataWinnerRunner-upMarginTotal Votes

Share a Stat

Generate a ready-to-screenshot social card from the current filter results.

HowIVoted.com — Election Data
Click a card type above to generate a shareable stat.
howivoted.com
Premium

Compare & analyze

Deeper tools for comparison, trends, and what-if modeling. Included with Premium and Ultimate.

Head-to-Head State Comparison Premium

Compare any two states side by side across election type and year range.

  • Margin and turnout by year
  • Which state is more competitive
  • Full history side by side

Swing State Tracker Premium

See which states have flipped party since 1980, with a flip-by-flip timeline.

  • Flip count per state
  • Year-by-year party timeline
  • Sorted by volatility

Primary Competitiveness Scores Premium

How contested was each party primary, scored 1 to 10 by margin and field size.

  • Score per primary year
  • Candidate count and spread
  • Both parties compared

Trend Explorer Premium

Deep patterns: shifts, battlegrounds, flips, dominance, decade and turnout-growth tables.

  • Battleground rankings
  • Flip and dominance tables
  • Decade-by-decade view

What-If Turnout Simulator Premium

Shift turnout up or down 20% and see whether the outcome would have flipped.

  • Model any state and year
  • Live recalculated result
  • Flip or hold verdict

Members preview

See what members get

These are the premium tools that turn 235 years of election data into answers. Take a look around, then upgrade to unlock them.

Compare plans
Basic

My states watchlist

Save your states and jump straight to them. Basic saves 3, Premium saves 10.

Tap to unlock →
Basic

Dashboard bookmarks

Save any filtered view and reopen it in one click.

Tap to unlock →
Basic

State detail pages

Open a full report page for any state, with records and quick navigation.

Tap to unlock →
Premium

Premium analytics

Winner streaks, bellwether finder, comeback tracker, and third-party history.

Tap to unlock →
Premium

AI Research Desk

Ask the dataset questions in plain English and get cited answers.

Tap to unlock →
Premium

PDF and CSV reports

Download printable state reports and clean CSV data.

Tap to unlock →
Organization

Raw JSON API

Pull election data straight into your own tools and research.

Tap to unlock →
Ultimate

Advanced exports & add-ons

Bulk era exports, embeddable charts, and every future premium add-on.

Tap to unlock →

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