Congress of Mexico City

19.4366°N 99.1377°W / 19.4366; -99.1377

Congress of Mexico City Congreso de la Ciudad de México
III Legislature [es]
Coat of arms of the Congress of Mexico City
Type
Type	Unicameral
Term limits	2 consecutive terms[1]
History
Founded	17 September 2018[2]
Structure
Seats	66 diputados[1]
Political groups	[3]   MORENA (24)   PAN (15)   PVEM (10)   AP (6)   PT (4)   MC (3)   PRD (2)   PRI (2)
Length of term	3 years[1]
Authority	Political Constitution of Mexico City[1]
Salary	MX$72,612.30 per month[4]
Elections
Voting system	34 with first-past-the-post and 32 with proportional representation[1]
Last election	2 June 2024 [es]
Next election	6 June 2027
Meeting place
Legislative Palace of Donceles Mexico City, Mexico
Website
congresocdmx.gob.mx

Composition of the Congress of Mexico City as of 2025

The Congress of Mexico City (Spanish: Congreso de la Ciudad de México) is the legislative branch of the government of Mexico City. Between 1988 and 1997, it was known as the Assembly of Representatives of the Federal District (Spanish: Asamblea de Representantes del Distrito Federal). Between 1997 and 2018, it was styled the Legislative Assembly of the Federal District (Spanish: Asamblea Legislativa del Distrito Federal.^[5] During those earlier periods, it had reduced powers compared to the current body.

Composition

The Congress consists of 66 deputies, of which 33 are elected by first-past-the-post voting and 33 by proportional representation.

III Legislative Assembly

From 2003 to 2006.

	Party	FPTP	PR	Total by party
	Party of the Democratic Revolution	37	0	37
	National Action Party	3	13	16
	Institutional Revolutionary Party	0	7	7
	Ecologist Green Party of Mexico	0	5	5
	Independent	0	1	1

IV Legislative Assembly

From 2006 to 2009.

	Party	FPTP	PR	Total by party
	Party of the Democratic Revolution	34	0	34
	National Action Party	4	13	17
	Institutional Revolutionary Party	0	4	4
	New Alliance Party	0	4	4
	Ecologist Green Party of Mexico	0	3	3
	Social Democratic and Peasant Alternative Party	0	2	2
	Labor Party	0	1	1
	Convergence	0	1	1

VI Legislative Assembly

From 2012 to 2015.

Political party	FPTP	PR	Total
Party of the Democratic Revolution	31	3	34
National Action Party	9	6	15
Institutional Revolutionary Party		8	8
Labor Party		5	5
Ecologist Green Party of Mexico		3	3
New Alliance Party		1	1
Total	40	26	66

VII Legislative Assembly

From 2015 to 2018.^[6]

Political party	FPTP	PR	Total
Morena	18	4	22
Party of the Democratic Revolution	12	7	19
National Action Party	5	5	10
Institutional Revolutionary Party	3	4	7
Labor Party	1		1
New Alliance Party	1		1
Social Encounter Party		2	2
Ecologist Green Party of Mexico		2	2
Citizens' Movement		1	1
Humanist Party		1	1
Total	40	26	66

History

In 1987, the federal government decided the creation of an Assembly of Representatives (Spanish: Asamblea de Representantes) of the Federal District. This assembly, elected by the inhabitants of the Federal District, had limited legislative powers. Nonetheless, it was the first time since 1928 that the inhabitants of the Federal District recovered some oversight over their local affairs. Eventually, in 1993, full home rule was granted to the Federal District by the federal government, with the creation of an elected Head of Government of the Federal District and a great expansion of the legislative powers of the Assembly of Representatives of the Federal District, which was also renamed the Legislative Assembly.

The first session of the Legislative Assembly of the Federal District ran from 1997 to 2000. Since its installation and until 2018, the Legislative Assembly was renewed for three-year terms a total of six times, when it was replaced by the Congress of Mexico City.