The first federal electoral district of Yucatán (Distrito electoral federal 01 de Yucatán) is one of the 300 electoral districts into which Mexico is divided for elections to the federal Chamber of Deputies and one of six such districts in the state of Yucatán.

It elects one deputy to the lower house of Congress for each three-year legislative period by means of the first-past-the-post system. Votes cast in the district also count towards the calculation of proportional representation ("plurinominal") deputies elected from the third region.^[1][2]

Yucatán gained a congressional seat in the 2022 redistricting process. Under the new districting plan, which will be used for the 2024, 2027 and 2030 federal elections,^[3] the first district is located in the east and south-east of the state. It comprises 27 municipalities:^[4]

• Cantamayec, Yaxcabá, Cuncunul, Chacsinkín, Chankom, Chemax, Chichimilá, Chikindzonot, Dzitás, Espita, Kaua, Panabá, Peto, Quintana Roo, Río Lagartos, San Felipe, Sucilá, Tahdziú, Calotmul, Tekom, Temozón, Tinum, Tixcacalcupul, Tixméhuac, Tizimín, Uayma and Valladolid.

The district's head town (cabecera distrital), where results from individual polling stations are gathered together and collated, is the city of Valladolid.^[5]

The district has a population of 376,469.^[a] With Indigenous and Afrodescendent inhabitants accounting for over 84% of that number, Yucatán's first – like all the state's electoral districts, both local and federal – is classified by the National Electoral Institute (INE) as an indigenous district.^[5]

2017–2022

Between 1996 and 2022, Yucatán had five federal electoral districts. Under the 2017 scheme, the first district's head town was at Valladolid and it covered 35 municipalities in the east of the state:^[6]

• Buctzotz, Calotmul, Cenotillo, Cuncunul, Chankom, Chemax, Chichimilá, Chikindzonot, Dzinzantún, Dzilam de Bravo, Dzilam González, Dzitás, Dzoncauich, Espita, Izamal, Kantunil, Kaua, Panabá, Quintana Roo, Río Lagartos, San Felipe, Sucilá, Sudzal, Tekal de Venegas, Tekom, Temax, Temozón, Tepakán, Tinum, Tixcacalcupul, Tizimín, Tunkás, Uayma, Valladolid and Yaxcabá.

2005–2017

Under the 2005 districting scheme, the district covered 33 municipalities in the east and south-east portions of the state and had its head town at Valladolid.^[7][8]

1996–2005

Between 1996 and 2005, the district's head town was at Valladolid and it covered an area broadly similar to its 2005 configuration, but with more of the northern coast and less of the south-eastern border with the state of Quintana Roo.^[8]

1978–1996

The districting scheme in force from 1978 to 1996 was the result of the 1977 electoral reforms, which increased the number of single-member seats in the Chamber of Deputies from 196 to 300. Under that plan, Yucatán's district allocation rose from three to four.^[9] The first district had its head town at the state capital, Mérida, and it covered a portion of that city.^[10]

National parties
Current
	PAN
	PRI
	PT
	PVEM
	MC
	Morena
Defunct or local only
	PLM
	PNR
	PRM
	PP
	PPS
	PARM
	PFCRN
	Convergencia
	PANAL
	PSD
	PES
	PRD

First federal electoral district of Yucatán

Election	Deputy	Party	Term	Legislature
1973	Víctor Cervera Pacheco[11]		1973–1976	49th Congress
1976	Mirna Hoyos de Navarrete[12]		1976–1979	50th Congress
1979	Federico Granja Ricalde[13]		1979–1982	51st Congress
1982	Víctor Cervera Pacheco[14] Herbé Rodríguez Abraham		1982–1984 1984–1985	52nd Congress
1985	Rodolfo Antonio Menéndez[15]		1985–1988	53rd Congress
1988	Ana Rosa Payán Cervera[16]		1988–1991	54th Congress
1991	Luis Correa Mena[17]		1991–1994	55th Congress
1994	Manuel Fuentes Alcocer[18]		1994–1997	56th Congress
1997	Orlando Paredes Lara[19]		1997–2000	57th Congress
2000	Jorge Carlos Berlín Montero[20]		2000–2003	58th Congress
2003	Roger David Alcocer García[21]		2003–2006	59th Congress
2006	Joaquín Jesús Díaz Mena[22]		2006–2009	60th Congress
2009	Liborio Vidal Aguilar[23]		2009–2012	61st Congress
2012	William Renan Sosa Altamira[24]		2012–2015	62nd Congress
2015	Liborio Vidal Aguilar[25]		2015–2018	63rd Congress
2018	Jesús Carlos Vidal Peniche[26]		2018–2021	64th Congress
2021	Sergio Chalé Cauich[27]		2021–2024	65th Congress
2024	Rocío Natali Barrera Puc[28]		2024–2027	66th Congress

20°41′N 88°12′W / 20.683°N 88.200°W / 20.683; -88.200