Aaron O'Neill
Research expert covering historical data
Detailed statistics
Party affiliation of U.S. presidents 1789-2021
Detailed statistics
Age of U.S. Presidents when taking office 1789-2025
Detailed statistics
Length of life and cause of death of U.S. presidents 1799-2024
Age of U.S. Presidents when taking office 1789-2025
Age of all non-incumbent Presidents of the United States when taking office from 1789 to 2025
Share of electoral and popular votes by each United States president 1789-2020
Share of electoral college and popular votes from each winning candidate, in all United States presidential elections from 1789 to 2020
Party affiliation of U.S. presidents 1789-2021
Number of U.S. presidents affiliated with each political party during their time in office from 1789 to 2021
Number of executive orders signed by U.S. presidents 1789-2024
Number of executive orders signed by each U.S. president from 1789 to 2024
Most common names of U.S. presidents 1789-2021
Most common first names and surnames of U.S. presidents from 1789 to 2021
Heights of all U.S. presidents 1789-2021
Height of all U.S. presidents from 1789 to 2021 (in centimeters)
Weights of all U.S. presidents 1789-2021
Weight of all U.S. presidents elected between 1789 and 2021 (in kilograms and pounds)
Number of U.S. presidents born in each state 1789-2021
Number of U.S. presidents born in each state, from those elected between 1789 and 2021
Universities attended by U.S. presidents by level of achievement 1751-1991
Number of presidential alumni from each university from those who attended between 1751 and 1991, by educational achievement
Number of foreign languages spoken by U.S. presidents 1789-2021
Number of non-English languages spoken, either fluently or partially, by all U.S. presidents elected between 1789 and 2021
Highest military rank held by U.S. presidents 1789-1973
Highest rank attained by U.S. presidents while serving in the U.S. Armed Forces between 1770 and 1973
Previous roles and professions of U.S. presidents 1789-2025
Number of U.S. presidents who held select professions or government roles before taking office between 1789 and 2025
Number of children of U.S. presidents 1789-2021
Number of children (including adopted and alleged children) of U.S. presidents who served from 1789 to 2021
Length of United States President's terms 1789-2021
Length of time spent in office by every President of the United States from 1789 to 2021 (in years)
Length of inaugural addresses of U.S. Presidents 1789-2021
Length of inaugural addresses of all American Presidents from 1789 to 2021
Votes for presidential impeachment in the U.S. senate in 1868-2021
Votes for criminal convictions in the U.S. Senate, following the impeachment of Presidents Johnson, Clinton, and Trump, between 1868 and 2021
Number of countries visited by U.S. presidents 1906-2021
Number of individual countries visited by each U.S. president (officially, unofficially or while vacationing) between 1906 and February 2021
Number of U.S. presidential visits to each country 1906-2021, by president
Number of times each country was visited by the sitting U.S. president (officially, unofficially or while vacationing) between 1906 and February 2021
Length of life and cause of death of U.S. presidents 1799-2024
Length of life and cause of death of United States Presidents from 1799 to 2024
Number of assassinations and attempts to assassinate U.S. presidents 1835-2024
Number of assassinations and assassination attempts on U.S. presidents from 1835 to 2024, by outcome
Number of U.S. presidents who died in each state 1799-2018
Number of U.S. presidents who died in each state, from 1799 to 2018
Number of slaves owned by U.S. presidents 1789-1877
Reported number of slaves owned by U.S. presidents who served from 1789 to 1877 (throughout their lifetimes)
Historians' ranking of U.S. presidents 2021
Ranking of U.S. presidents by historians during the C-SPAN Presidential Historians Survey 2021
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