2019 Buenos Aires City elections

General elections were held in the City of Buenos Aires on 27 October 2019, coinciding with the general election being held nationwide. The Chief of Government (mayor), half of the City Legislature and all 150 members of the communal boards were elected to four-year terms.

2019 Buenos Aires City elections

Mayoral election
← 2015 27 October 2019 2023 →
Turnout	79.78%
Nominee Horacio Rodríguez Larreta Matías Lammens Party PRO Independent Alliance JxC FdT Running mate Diego Santilli Gisela Marziotta Popular vote 1,095,013 687,026 Percentage 55.90% 35.07%   Nominee Matías Tombolini Gabriel Solano Party APPS Workers' Party Alliance CF FIT – Unidad Running mate Daniela Gasparini Vanesa Gagliardi Popular vote 105,083 71,619 Percentage 5.36% 3.66%
Results of the Chief of Government election by commune.
Chief of Government before election Horacio Rodríguez Larreta PRO–JxC Elected Chief of Government Horacio Rodríguez Larreta PRO–JxC
City Legislature
← 2017 27 October 2019 2021 →
30 out of 60 seats in the City Legislature
Turnout	79.78%
Party Leader Vote % Seats +/– JxC Horacio Rodríguez Larreta 54.22 17 +1 FdT Matías Lammens 33.88 11 +5 CF Matías Tombolini 5.44 1 0 FIT – Unidad Gabriel Solano 4.68 1 −1 This lists parties that won seats. See the complete results below.

In the mayoral election, incumbent Horacio Rodríguez Larreta of the PRO party was re-elected for a second term with a record 55.90% of the vote. This was the first election since the adoption of the city's 1996 Constitution, which granted autonomy to the city and allowed it to vote for its own Chief of Government, in which a candidate won in the first round of voting.

Background

The 2015 elections in Buenos Aires resulted in election of Horacio Rodríguez Larreta, former cabinet chief to Mauricio Macri and a leading figure within Republican Proposal (PRO) and its Juntos por el Cambio alliance (JxC). JxC also remained the largest force in the City Legislature.

Ahead of the 2019 election, the different parties of the Juntos por el Cambio coalition agreed to avoid a primary and unanimously backed the candidacy for re-election of Rodríguez Larreta. For their part, the newly formed opposition Frente de Todos coalition (made up of the Justicialist Party, the Renewal Front and other peronist and progressive parties) nominated businessman and San Lorenzo de Almagro president Matías Lammens.

Candidates

Coalition		Mayoral candidate (party) Prior political experience	Vice mayoral candidate (party) Prior political experience	Parties
		Horacio Rodríguez Larreta (PRO) Chief of Government (2015–2023)	Diego Santilli (PRO) Deputy Chief of Government (2015–2023)	PRO UCR CC-ARI PS CF FE MID PDP PRF
		Matías Lammens (Ind.) President of Club Atlético San Lorenzo (2012–2019)	Gisela Marziotta (PJ)	PJ FR FPG FG PV ND Kolina PI CF NE PSOL FORJA PF PC PTP PSA SL RxBA ParTE PeM FPyP
		Matías Tombolini (APPS) President of the Economic and Social Council of Buenos Aires (2018–2019)	Daniela Gasparini (LDS)	GEN PSA LDS PF APPS PI
		Gabriel Solano (PO) City Legislator (2017–2020)	Vanesa Gagliard (MST)	PO PTS MST IS

Opinion polling

Pollster/client(s)	Date(s) conducted	Sample size	Larreta JxC	Lammens FDT	Tombolini CF	Solano FIT-U	Others	Blank	Abst. Undec.	Lead
2019 city elections	27 Oct 2019	–	55.9	35	5.4	3.7	–	4.9	20.2	20.8
Management & Fit	Jul 2019		44.1%	41.9	1.7%	1.5	4.5	0.5	5.8	2.2

Results

Primaries

Mayoral primaries

Coalition		List	Mayoral candidate	Candidate votes		Overall votes
				Votes	%	Votes	%
	Juntos por el Cambio	Juntos Somos el Cambio	Horacio Rodríguez Larreta	905,875	46.23	905,875	46.23
	Frente de Todos	Celeste y Blanca	Matías Lammens	623,044	31.80	623,044	31.80
	Federal Consensus	Consenso para el Futuro	Matías Tombolini	140,583	7,18	140,583	7,18
	Worker's Left Front-Unity	Unidad	Gabriel Solano	78,243	3.99	78,243	3.99
	Self-determination and Freedom	Que Los Pueblos Manden	Marta Martínez	23,600	1.20	23,600	1.20
	Movement for Socialism	Unidad de la Izquierda	Miguel Ángel Forte	17,682	0,91	17,682	0,91
	People's Dignity	Liberación	Leonardo Martínez Herrero	2,216	0.11	2,216	0.11
	Unite for Freedom and Dignity	Dignidad	Roberto Valerstein	994	0.05	994	0.05
Valid votes						1,829,526	100
Blank votes						166,974	8.52
Invalid votes						18,043	0.91
Total						1,977,254	91.48
Registered voters/turnout						2,588,852	76.38
Source:

Chief of Government

Candidate		Running mate	Party	Votes	%
	Horacio Rodríguez Larreta	Diego Santilli	Juntos por el Cambio	1,095,013	55.90
	Matías Lammens	Gisela Marziotta	Frente de Todos	687,026	35.07
	Matías Tombolini	Daniela Gasparini	Federal Consensus	105,083	5.36
	Gabriel Solano	Vanesa Gagliardi	Workers' Left Front	71,619	3.66
Total				1,958,741	100.00
Valid votes				1,958,741	95.03
Invalid votes				14,469	0.70
Blank votes				88,023	4.27
Total votes				2,061,233	100.00
Registered voters/turnout				2,583,527	79.78
Source:

Results by commune

Communes won by Larreta

Communes won by Lammens

Commune	Larreta (JxC)		Lammens (FDT)		Tombolini (CF)		Solano (FIT-U)		Total votes
	Votes	%	Votes	%	Votes	%	Votes	%
Comuna 1	69,139	55.49	45,671	36.66	5,532	4.44	4,250	3.41	124,592
Comuna 2	79,171	73.90	21,540	20.11	3,774	3.52	2,644	2.47	107,129
Comuna 3	59,206	50.72	46,054	39.46	6,524	5.59	4,934	4.23	116,718
Comuna 4	61,506	45.21	61,706	45.36	7,548	5.55	5,285	3.88	136,045
Comuna 5	61,859	50.82	47,188	38.76	7,165	5.89	5,516	4.53	121,728
Comuna 6	73,928	57.96	41,598	32.61	7,016	5.50	5,008	3.93	127,550
Comuna 7	69,191	51.34	52,729	39.13	7,924	5.88	4,916	3.65	134,760
Comuna 8	43,879	40.20	55,535	50.89	6,174	5.66	3,546	3.25	109,134
Comuna 9	55,684	47.92	48,483	41.72	7,926	6.82	4,108	3.54	116,201
Comuna 10	61,119	52.08	43,608	37.16	8,061	6.87	4,560	3.89	117,348
Comuna 11	77,442	56.58	45,903	33.53	8,461	6.18	5,078	3.71	136,884
Comuna 12	88,422	58.21	48,886	32.18	8,743	5.76	5,841	3.85	151,892
Comuna 13	118,955	69.79	39,103	22.94	7,044	4.13	5,341	3.14	170,443
Comuna 14	111,104	69.25	38,597	24.06	6,015	3.75	4,717	2.94	160,433
Comuna 15	64,393	50.45	50,198	39.33	7,172	5.62	5,868	4.60	127,631
Prisons	15	5.93	227	89.72	4	1.58	7	2.77	253
Total	1,095,013	55.90	687,026	35.07	105,083	5.36	71,619	4.28	1,958,741

Legislature

Party		Votes	%	Seats
	Juntos por el Cambio	1,068,634	54.22	17
	Frente de Todos	667,732	33.88	11
	Federal Consensus	107,237	5.44	1
	Workers' Left Front – Unity	92,233	4.68	1
	Unite for Freedom and Dignity	35,243	1.79	0
Total		1,971,079	100.00	30
Valid votes		1,971,079	95.63
Invalid votes		14,134	0.69
Blank votes		76,020	3.69
Total votes		2,061,233	100.00
Registered voters/turnout		2,583,527	79.78
Source:

See also

• 2019 Argentine general election
• 2019 Argentine provincial elections
• 2019 Buenos Aires provincial election
• List of mayors and chiefs of government of Buenos Aires City