thumb|right|250px|alt=Map of Mexico with Quintana Roo highlighted|Map of Mexico with Quintana Roo highlighted
Quintana Roo is a state in southeast Mexico. It was established from the federal territory of Quintana Roo in 1974 with seven municipalities, which has since grown into eleven municipalities. According to the 2020 INEGI census, it has the twenty-fourth largest population of all states with inhabitants and is the 19th largest by land area spanning .
Municipalities in Quintana Roo are administratively autonomous of the state according to the 115th article of the 1917 Constitution of Mexico. Their legal framework derives from the state Constitution. Every three years, citizens elect a municipal president (Spanish: presidente municipal) by a plurality voting system. The president heads a concurrently elected municipal council (ayuntamiento) responsible for providing public services for their constituents. The municipal council consists of trustees and councillors (regidores y síndicos). Municipalities are responsible for public services (such as water and sewerage), street lighting, public safety, traffic, and the maintenance of public parks, gardens and cemeteries. They may also assist the state and federal governments in education, emergency fire and medical services, environmental protection and maintenance of monuments and historical landmarks. Since 1984, they have had the power to collect property taxes and user fees, although more funds are obtained from the state and federal governments than locally.
Municipalities
thumb|Map of municipalities of Quintana Roo. 1: Cozumel. 2: Felipe Carrillo Puerto. 3: Isla Mujeres. 4: Othón P. Blanco. 5: Benito Juárez. 6: José María Morelos. 7: Lázaro Cárdenas. 8: Solidaridad. 9: Tulum. 10: Bacalar. 11: Puerto Morelos.
<gallery mode="packed" heights="130" caption="Largest municipalities in Quintana Roo by population">
File:Cancun Strand Luftbild (22143397586).jpg|alt=Aerial photograph of Cancun beach and buildings|Benito Juárez, the municipality containing Cancún, is the largest municipality by population in Quintana Roo.
File:Xcaret_parque_temático.jpg|alt=Xcaret|Solidaridad, second largest municipality by population
File:Along_Boulevard_de_Bahia_-_Chetumal_-_Quintana_Roo_-_Mexico.jpg|alt=Chetumal shoreline|Othón P. Blanco is the third largest municipality by population and contains the state capital.
File:Cozumel.jpg|alt=Shoreline and houses in Cozumel|Cozumel is the fourth largest municipality by population.
</gallery>
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{| class="wikitable sortable" style="text-align:right;"
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!scope="col" rowspan=2| Name
!scope="col" rowspan=2| Municipal seat
!scope="col" rowspan=2| Population<br />(2020)
!scope="col" rowspan=2| Population<br />(2010)
!scope="col" rowspan=2| Change
!scope="col" data-sort-type="number" colspan=2| Land area
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!scope="col"| km<sup>2</sup>
!scope="col"| sq mi
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!scope="row" align="left"|Bacalar
