IFES Election Guide | Country Profile: Mexico

United Mexican States

130,262,371	21
Population (as of July 20, 2021)	Elections in our database
92,823,216	53.66%
Registered Voters (as of April 21, 2022)	Average Turnout

Name	Official Name	Type
Mexican Senate	Camara de Senadores	Upper House
Mexican Chamber of Deputies	Camara de Diputados	Lower House
Mexican Presidency	None	Head of State & Government

Description of government structure:

Chief of State: President Andrés Manuel López OBRADOR
Head of Government: President Andrés Manuel López OBRADOR
Assembly: Mexico has a bicameral National Congress (Congreso de la Union) consisting of the Senate (Camara de Senadores) with 128 seats and the Chamber of Deputies (Camara de Diputados) with 500 seats.

Description of electoral system:

The President is elected by plurality vote to serve a 6-year term.
In the Senate (Camara de Senadores), 96 members are elected by plurality vote in multi-member constituencies to serve 6-year terms and 32 members are elected through a closed-list proportional representation system to serve 6-year terms.
- The voter votes at the state level. 96 Senators are elected from closed party lists in 32 districts of three seats, each corresponding to a state. The top vote-getting list wins two seats. The next-placed list wins one. Parties may nominate two candidates in any given district. 32 more Senators are elected from closed, nation-wide party lists. National vote shares are determined by summing state-level results. The threshold in this tier is two percent.
In the Chamber of Deputies (Camara de Diputados), 300 members are elected by plurality vote in single-member constituencies to serve 3-year terms and 200 members are elected through a closed-list proportional representation system to serve 3-year terms.
- The voter casts one vote at the single-member district level. PR seats are allocated from closed lists in five multi-member districts of 40 seats each in order to make each party's seat share proportional to its vote share at the MMD level. No party may seat more than 300 deputies. No party's seat share may be more than eight percent in excess of its vote share. This rule does not hold, however, if the disproportion results in the single-member district tier. A party may not contest seats in the proportional tier unless it registers candidates in at least 200 single-member constituencies. The threshold in the proportional tier is two percent.

Elections

Election For	Date	Votes	Registered Voters	Turn Out
Mexican Chamber of Deputies	2000-07-02	37,424,301	58,789,209	63.66
Mexican Senate	2000-07-02	37,610,715	58,789,209	63.98
Mexican Presidency	2000-07-02	37,603,923	58,789,209	63.96
Mexican Chamber of Deputies	2003-07-06	26,968,371	64,710,596	41.68
Mexican Presidency	2006-07-02	41,791,322	71,374,373	58.55
Mexican Chamber of Deputies	2006-07-02	41,195,198	71,374,373	57.72
Mexican Senate	2006-07-02	41,762,798	71,374,373	58.51
Mexican Chamber of Deputies	2009-07-05	34,126,794	71,351,123	47.83
Mexican Presidency	2012-07-01	50,323,153	77,738,494	64.73
Mexican Senate	2012-07-01	50,310,328	77,547,511	64.88
Mexican Chamber of Deputies	2012-07-01	51,052,668	77,547,511	65.83
Mexican Chamber of Deputies	2015-06-07	39,872,757	83,563,272	47.72
Mexican Presidency	2018-07-01	56,611,027	89,250,881	63.43
Mexican Senate	2018-07-01	56,237,841	89,250,881	63.01
Mexican Chamber of Deputies	2018-07-01	55,967,433	89,069,718	62.84
Mexican Chamber of Deputies	2021-06-06	49,151,320	93,328,771	52.66
Referendum	2021-08-01	6,663,208	93,671,697	7.11
Referendum	2022-04-10	16,502,636	92,823,216	17.78
Mexican Senate	2024-06-02	-	-	-
Mexican Presidency	2024-06-02	-	-	-
Mexican Chamber of Deputies	2024-06-02	-	-	-

Voter Turnout

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