9th federal electoral district of Guerrero

Evolution of electoral district numbers

	1974	1978	1996	2005	2017	2023
Guerrero	6	10	10	9	9	8
Chamber of Deputies	196	300
Sources: [6][9][10][11]

2017–2022

In its final form, the 9th district covered 159 electoral precincts (secciones electorales) in the municipality of Acapulco. The head town (cabecera distrital), where results from individual polling stations were gathered together and tallied, was the port city of Acapulco.^[12]

2005–2017

Guerrero lost its 10th district in the 2005 redistricting process. Between 2005 and 2017, the 9th district comprised 162 precincts in the eastern portion of the municipality of Acapulco. The head town was Acapulco.^[13][14]

1996–2005

Under the 1996 districting plan, which allocated Guerrero ten districts, the 9th district was located in the municipality of Acapulco. It covered a part of the urban area and the municipality's rural hinterland.^[b] The head town was at Acapulco.^[15][14]

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, Guerrero's district allocation rose from six to ten.^[16] The newly created 9th district had its head town at Tecpan de Galeana in the Costa Grande region and it covered the municipalities of Atoyac de Álvarez, Benito Juárez, José Azueta, Petatlán, Tecpan de Galeana and La Unión.^[17]