2004 Missouri Amendment 2

Constitutional Amendment 2 of 2004 is an amendment to the Missouri Constitution that prohibited same-sex marriages from being recognized in Missouri. The Amendment passed via public referendum on August 3, 2004 with 71% of voters supporting and 29% opposing.[1] Every county voted in favor of the amendment, with only the independent city of St. Louis voting against it.[2]

Constitutional Amendment 2

August 3, 2004
Missouri Marriage Definition Amendment
Results
Choice Votes  % Yes 1,055,771 70.61% No 439,529 29.39% Total votes 1,495,300 100.00%
Yes   80–90%   70–80%   60–70%   50–60% No   50–60%

Elections in Missouri
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Ballot measures 1999 Proposition B 2004 Amendment 2 2006 Amendment 2 2018 Proposition A 2020 Amendment 2 2022 Amendment 3
Columbia Mayoral elections 2016 2019 2022
Kansas City Mayoral elections 2003 2007 2011 2015 2019 2023
Springfield Mayoral elections 2021
St. Louis Mayoral elections 1973 1977 1981 1985 1989 1993 1997 2001 2005 2009 2013 2017 2021 Board of Aldermen elections 2023

The text of the adopted amendment, which is found at Article I, section 33 of the Missouri Constitution, states:

That to be valid and recognized in this state, a marriage shall exist only between a man and a woman.[3]

This amendment was voided by the 2015 decision of the United States Supreme Court in Obergefell v. Hodges, which overturned statewide bans on same-sex marriage nationwide.