Statistics of the 113th-117th Congresses

Since we have had many landslide elections that saw a lot of turnover in the Senate, I became curious to see how factors such as age, date of birth, and length of time served changed over the years. I even broke up parts of a term of Congress so I can show the statistics when a Senator resigns, dies in office, or is defeated in a special election.

This is a “living” diary, which I plan to update for the remaining Congresses under the 2010 Census, so that is why I have the 117th Congress in the title. Eventually, I plan to collect as much data from the previous Congresses as I can to see the trends over longer periods. I also plan to do the same with the House.

I will put the bar graphs on my website. theelectionsgeek.com

Parts of each Congress in the 113th-117th Congresses (01/03/2013 – 01/03/2023)
Congress Beginning Date End Date What Happened (on beginning date)
113 01/03/2013 02/01/2013 New Congress sworn in
113 02/01/2013 06/03/2013 John Kerry (D-MA) appointed Secretary of State; Mo Cowan (D-MA) appointed
113 06/03/2013 06/06/2013 Frank Lautenberg (D-NJ) died
113 06/06/2013 07/16/2013 Jeffrey Chiesa (R-NJ) appointed
113 07/16/2013 10/31/2013 Ed Markey (D-MA) elected in special
113 10/31/2013 02/06/2014 Cory Booker (D-NJ) elected in special
113 02/06/2014 02/09/2014 Max Baucus (D-MT) appointed Ambassador to China
113 02/09/2014 01/03/2015 John Walsh (D-MT) appointed
114 01/03/2015 01/03/2017 New Congress sworn in
115 01/03/2017 02/09/2017 New Congress sworn in
115 02/09/2017 Present Jeff Sessions (R-AL) appointed AG

Age/Birth Date Statistics for Senators in the 113th-117th Congresses (01/03/2013 – 01/03/2023)

Congress Start End Med Age (y) Mean Age (y) Med DoB Mean DoB
113 01/03/2013 02/01/2013 61.74 61.62 04/10/1951 05/24/1951
113 02/01/2013 06/03/2013 61.44 61.70 05/20/1951 08/24/1951
113 06/03/2013 06/06/2013 61.54 61.98 06/12/1951 11/20/1951
113 06/06/2013 07/16/2013 61.36 61.98 06/12/1951 11/20/1951
113 07/16/2013 10/31/2013 61.71 62.16 05/20/1951 10/31/1951
113 10/31/2013 02/06/2014 61.96 62.45 05/20/1951 11/14/1951
113 02/06/2014 02/09/2014 62.14 62.66 06/12/1951 12/21/1951
113 02/09/2014 01/03/2015 62.05 62.66 06/12/1951 01/22/1952
114 01/03/2015 01/03/2017 61.28 61.12 09/24/1953 11/06/1953
115 01/03/2017 02/09/2017 62.40 62.27 08/11/1954 09/26/1954
115 02/09/2017 Present 62.50 62.31 08/11/1954 10/19/1954

Term Statistics for Senators in the 113th-117th Congresses (01/03/2013 – 01/03/2023)

Congress Start End Med Years Med Terms Mean Years Mean Terms
113 01/03/2013 02/01/2013 6.00 1.00 9.63 1.60
113 02/01/2013 06/03/2013 6.08 1.01 9.42 1.57
113 06/03/2013 06/06/2013 6.41 1.07 9.75 1.63
113 06/06/2013 07/16/2013 6.42 1.07 9.66 1.61
113 07/16/2013 10/31/2013 6.53 1.09 9.77 1.63
113 10/31/2013 02/06/2014 6.83 1.14 10.06 1.68
113 02/06/2014 02/09/2014 7.10 1.18 10.08 1.68
113 02/09/2014 01/03/2015 7.10 1.18 10.08 1.68
114 01/03/2015 01/03/2017 5.97 0.996 9.13 1.52
115 01/03/2017 02/09/2017 4.00 0.67 9.99 1.67
115 02/09/2017 Present 4.10 0.68 9.89 1.65

 

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3 Comments

  • shamlet May 31, 2017 at 2:26 pm

    Interesting stats. 62 is actually younger than I would have guessed for the average Senator… I wonder if it was significantly older before that big generational turnover around 2009-2012.


    R, MD-7. Process is more important than outcome.

    • californianintexas May 31, 2017 at 8:48 pm

      It’s quite possible. I can’t wait to do the 2000s stats with Byrd, Stevens, Inouye, Akaka, etc.


      34, Female, Libertarian, UT-02 (hometown CA-31), theelectionsgeek.com

  • Republican Michigander May 31, 2017 at 11:42 pm

    Carl Lenin’s retirement dropped the age average a bit.


    MI-08 - Michigan is a red state again. We need a 50 state strategy and an 83 county strategy.

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