Demographics
[edit]
Main article: Demographics of Mayotte
Historical populationYearPop.±% p.a. 1958 23,364—    1966 32,607+3.94%1978 47,246+3.17%1985 67,205+5.09%1991 94,410+5.81%1997 131,320+5.67%2002 160,265+4.08%2007 186,452+3.07%2012 212,645+2.63%2017 256,518+3.79% 2024 320,901+3.61%Official population figures from past censuses up to 2017. Last INSEE 2024 estimate.
On 1 January 2024, a record 320,901 people were living in Mayotte (official INSEE estimate). According to the 2017 census, 58.5% of the people living in Mayotte were born in Mayotte (down from 63.5% at the 2007 census), 5.6% were born in the rest of the French Republic (either metropolitan France or overseas France except Mayotte) (up from 4.8% in 2007), and 35.8% were immigrants born in foreign countries (up from 31.7% at the 2007 census, with the following countries of birth in 2007: 28.3% born in the Union of the Comoros, 2.6% in Madagascar, and the remaining 0.8% in other countries).
According to a field study conducted by INSEE in 2015–2016, only 35.6% of the adults (18 years of age and older) living in Mayotte were born in Mayotte of mothers themselves born in Mayotte, whereas 37.4% of the adults were either born in Anjouan (in the Union of the Comoros) or born in Mayotte of mothers born in Anjouan, 13.5% were either born in Grande Comore or Mohéli (in the Union of the Comoros) or born in Mayotte of mothers born in Grande Comore or Mohéli, 7.9% were either born in France (outside of Mayotte) or in Mayotte of mothers born in France (outside of Mayotte), and 5.7% were either born in foreign countries (other than the Comoros) or in Mayotte of mothers born in foreign countries (other than the Comoros).
Most of the inhabitants of the island are culturally Comorians. The Comorians are a blend of settlers from many areas: South Arabs, Bantus, and Malagasy. Comorian communities can also be found in other parts of the Comoros chain as well as in Madagascar.[citation needed]
In 2017, mothers born in foreign countries (predominantly the Union of the Comoros) were responsible for 75.7% of the births that took place in Mayotte although many of these births were to French fathers: 58% of children born in Mayotte in 2017 had at least one French parent.
Illegal immigration is a huge problem in Mayotte. French Minister for Overseas Territories, Manuel Valls, has called immigration "a plague" that is "gradually killing" the island. The citizenship laws have been amended, and radar has been introduced.
Clandestine immigration[edit]
A kwassa kwassa, a small fishing boat used by smugglers to reach Mayotte
Wreckage of a Comorian kwassa kwassa
As of 2025, the population of Mayotte is estimated at 329,282 inhabitants. In March 2018, the immigrant population was estimated at 45% of the island's adult population. 95% of foreigners are Comorian nationals; in 2012, 39% of these foreigners were born on Mahoran territory, mainly minors who can therefore obtain French nationality when they reach adulthood. In 2023, Mediapart revealed a report written in January 2022 by six ministries on the situation in Mayotte. The report noted that, according to recent INSEE analyses, Comorian nationals still represent the overwhelming majority of foreigners, and demographic pressure continues to grow. Projections indicate that, under the most alarming scenario, the population of Mayotte could reach up between 440,000 to 760,000 inhabitants by 2050 due to sustained irregular immigration.
On 18 January 1995, following demonstrations and at the request of Mahoran authorities who were witnessing a continuous influx of Comorian migrants, the "Balladur visa" was introduced (named after the Prime Minister at the time), and has applied to Comorians wishing to travel to Mayotte ever since. Indeed, Mayotte increasingly appears as an oasis of prosperity in an ocean of poverty. In 2010, GDP per capita was eight times higher in Mayotte than in the Comoros. Moreover, Mayotte offers access to free education and healthcare, and eligibility for social benefits at the same level as metropolitan France since departmentalization.
Today, Mayotte faces massive illegal immigration, and in 2012 it was estimated that one in three residents was a foreigner in an irregular situation. Since May 2014, the Code of Entry and Residence of Foreigners and of the Right of Asylum (Code de l'entrée et du séjour des étrangers et du droit d'asile, CESEDA) has applied to Mayotte.
Despite numerous operations and reinforced controls, Mayotte continues to face massive irregular immigration. In 2023, the authorities conducted an exceptionally high number of operations at sea (Opération Shikandra): 260 kwassas detected and 2,255 irregular migrants intercepted, a 38% increase compared with 2020. In 2024, interceptions remained numerous, though slightly below the peak recorded in 2023, illustrating the persistence of clandestine sea crossings.
The administrative detention centre (Centre de rétention administrative, CRA) of Pamandzi remains one of the busiest in all of France. In 2023, France recorded 28,180 detention placements, a substantial portion of which occurred in Mayotte. In 2024, 19,262 expulsions were carried out from Mayotte—representing a 21% decrease compared with 2023. However, this decline has not reduced the overall migratory pressure.
Logically, the hub of immigration is Anjouan, the island closest to Mayotte, located only 70 km away. Undocumented migrants from the various Comorian islands gather there to use the services of smugglers. Around 12,000 people are believed to have died attempting to reach Mayotte in makeshift boats, the kwassa kwassa, making the stretch of sea between Mayotte and Anjouan the deadliest maritime crossing in the world.
Many associations such as the Association nationale d'assistance aux frontières pour les étrangers (National Association for Border Assistance to Foreigners) and Mahoran public figures denounce what they describe as active complicity by the Comorian state in this tragedy: the factory in Anjouan that produces the fragile boats has never been targeted, and of the 450 to 500 annual departures, Comorian authorities intercept barely one, allowing this deadly industry to flourish and leaving the entire humanitarian burden to the French state across the sea.
In 2017, the population of Mayotte and the French authorities themselves were divided over the future of the Balladur visa, with many Mahorans opposing any challenge to it. Conversely, beyond economic motivations, some Comorians—who blame the deaths at sea on the Balladur visa—justify illegal emigration on the grounds that Mayotte belongs to the Comoros.
In 2025, Le Monde published an investigation questioning the actions of the "interceptors" of the border police, who monitor territorial waters day and night. Sometimes contrary to international maritime boarding regulations, these maneuvers have been implicated in several shipwrecks that have caused hundreds of deaths since 2010.
Religion[edit]
Passamaïnty mosqueTsingoni Mosque is the oldest active mosque in France.
Islam has been present in the archipelago since at least the 16th century. The mosque of Tsingoni (built in the 16th century), listed as a historic monument in 2015, is considered the oldest mosque still in use in France. The French census does not collect religious data, but the CIA World Factbook estimates that the population is 97% Muslim and 3% Christian.
About 95% of the Mahoran population is Muslim. The Sunni tradition was introduced by Arab-Persian populations, while African culture gave it animist influences. From the age of six, many children attend both Qur'anic school and public primary school. However, this double schooling has been declining due to the growing influence of the French Republic and French media. The madrassa is therefore increasingly seen as non-essential for Mahorans. Mahoran Islam follows the Shafi'i tradition, known for being moderate, open, and tolerant, and the island has never experienced religious conflict or issues related to radicalization. However, a Saudi influence has begun to appear (likely through the Comoros), and the traditional shawl is sometimes replaced by an Islamic veil (which is prohibited as such in schools), or in some families in the west of the island, by the niqab (theoretically banned in public spaces).
The main religious minority, Roman Catholicism—with around 4,000 members—has only one parish with two places of worship: Notre-Dame-de-Fatima Church in Mamoudzou and Saint-Michel Church in Dzaoudzi, and it has no proper diocese. Instead, it is served, together with the Comoros, by a missionary jurisdiction: the Apostolic Vicariate of the Comoros Archipelago. Although Catholics report feeling "tolerated within the context of outreach or missions to the marginalized," they are not permitted to ring their church bells before Mass.
The Indian community in Mayotte (in the broad sense, including members from Réunion, Mauritius, or Sri Lanka) numbers about 500 people, mostly Muslims but of a different rite from that practiced in Mayotte (Khojas, Ismailis, etc.), with some Hindus as well.
Languages[edit]
French is the sole official language of Mayotte. It is the language used for administration, education, most television, and radio, as well as in commercial announcements and billboards.
The native languages of Mayotte are:
Shimaore, a dialect of Comorian (a close relative of Swahili)
Kibushi, a western dialect of Malagasy (the predominant language of Madagascar) heavily influenced by Shimaore and Arabic
Kiantalaotsi, another western dialect of the Malagasy language also heavily influenced by Shimaore and Arabic
Kibushi is spoken in the south and north-west of Mayotte, while Shimaore is spoken elsewhere.
Besides French, other non-indigenous languages are also present in Mayotte:
Arabic, essentially learned in the Quranic schools
various non-Shimaore dialects of the Comorian language, essentially imported by immigrants who have arrived in Mayotte since 1974: Shindzwani (the dialect of Anjouan, or Nzwani), Shingazidja (the dialect of Grande Comore, or Ngazidja), and Shimwali (the dialect of Mohéli, or Mwali).
Shingazidja and Shimwali on the one hand and Shimaore on the other hand are generally not mutually intelligible. Shindzwani and Shimaore are perfectly mutually intelligible.
2012 and 2017 censuses[edit]
No questions regarding the knowledge or use of languages were asked in the 2012 and 2017 censuses, and no question relative to languages will be asked in the future censuses of Mayotte, leaving the now quite outdated census data from 2007 as the last official data on the topic of languages. Improvement in schooling has markedly increased French literacy and knowledge since 2007.
2007 census[edit]
At the 2007 census, 63.2% of people 14 years old and older reported that they could speak French, with large differences with age. 87.1% of those whose age was 14 to 19 years old reported that they could speak it, whereas only 19.6% of those aged 65 and older reported that they could speak it. 93.8% of the population whose age was 14 or older reported that they could speak one of the local languages of Mayotte (Shimaore, Kibushi, Kiantalaotsi, or any of the Comorian dialects, which the census included in the 'local languages'). 6.2% of the population aged 14 and older reported that they spoke none of the local languages and could speak only French.
2006 survey[edit]
A survey was conducted by the French Ministry of National Education in 2006 among pupils registered in CM2 (equivalent to fifth grade in the US and Year 6 in England and Wales). Questions were asked regarding the languages spoken by the pupils as well as the languages spoken by their parents. According to the survey, the ranking of mother tongues was the following (ranked by number of first language speakers in the total population; note that percentages add up to more than 100% because some people are natively bilingual):
Shimaore: 55.1%
Shindzwani: 22.3%
Kibushi: 13.6%
Shingazidja: 7.9%
French: 1.4%
Shimwali: 0.8%
Arabic: 0.4%
Kiantalaotsi: 0.2%
Other: 0.4%
When also counting second language speakers (e.g., someone whose mother tongue is Shimaore but who also speaks French as a second language) then the ranking became:
" Shimaore: 88.3%
" French: 56.9%
" Shindzwani: 35.2%
" Kibushi: 28.8%
" Shingazidja: 13.9%
" Arabic: 10.8%
" Shimwali: 2.6%
" Kiantalaotsi: 0.9%
" Other: 1.2%
With the mandatory schooling of children and the economic development both implemented by the French central state, the French language has progressed significantly on Mayotte in recent years. The survey conducted by the Ministry of National Education showed that while first and second language speakers of French represented 56.9% of the population in general, this figure was only 37.7% for the parents of CM2 pupils, but reached 97.0% for the CM2 pupils themselves (whose age is between 10 and 14 in general).[citation needed]
Nowadays there are instances of families speaking only French to their children in the hope of helping their social advancement. With French schooling and French-language television, many young people turn to French or use many French words when speaking Shimaore and Kibushi, leading some to fear that these native languages of Mayotte could either disappear or become some sort of French-based creole.
Health[edit]
Mamoudzou is the only town where a hospital is located (the CHM, Centre Hospitalier de Mayotte). It consists of a reference hospital in the capital, four peripheral hospitals (on Petite-Terre/Dzaoudzi and at other outlying sites) and thirteen consultation centres (formerly dispensaries) spread across the island. Since 2001, the CHM has had a mental health department. As of recent data, it has 573 beds, reflecting an increase in capacity compared to previous years. According to two reports from the Social Affairs Committees of the Senate (2022) and the National Assembly (October 2024), the CHM provides 72% of the island's healthcare services. However, the vast majority of births take place in Mamoudzou, making the CHM the largest maternity ward in France: 54% of the island's annual births in 2003, and 57.3% in 2004.
Several "intercommunal" maternity units have been opened: Mramadoudou in the south of the island (2005), Kahani in the commune of Ouangani in the center (2006), and Bandraboua in the north (2010). The health-care offer remains heavily concentrated: most doctors are based in Mamoudzou or Petite-Terre; rural and peripheral areas — especially in the North and South — are described as "medical deserts."
Since April 1, 2005, healthcare is no longer free on the territory. Patients must present a Social Security card or pay a flat-rate fee at public healthcare facilities, or pay private physicians directly.
There are also around fifteen dispensaries in the villages, which share the few on-call doctors. They are supported by four intercommunal hospitals, or reference dispensaries: the CHM annex in Petite-Terre (Dzaoudzi), the South Hospital (Chirongui), the Central Hospital (Kahani), and the North Hospital (Dzoumogné).
Despite these facilities, Mayotte remains the French territory with the most severe shortage of medical personnel. As of 1 January 2023, Mayotte has 265 physicians (including general practitioners, specialists, dentists, and pharmacists). The density of general practitioners is 49 per 100,000 inhabitants, compared with 147 in metropolitan France. The gap widens further for specialist doctors, with 39 specialists per 100,000 inhabitants in Mayotte versus 194 in mainland France. There are also 9 dentists and 31 pharmacists per 100,000 inhabitants in Mayotte, compared with 67 and 109 in metropolitan France. These figures are also the lowest among all Overseas Departments.
Although it is possible to benefit from universal health coverage (couverture maladie universelle, CMU) in Mayotte, residents cannot access complementary CMU coverage as in metropolitan France.
Malaria, dengue, and chikungunya occur on the island, all transmitted by mosquitoes, but infections among healthy people living in acceptable hygienic conditions are rare. Rats can sometimes transmit leptospirosis, and an invasive species of giant snail (Lissachatina fulica) may transmit a form of meningitis (angiostrongyliasis).
Obesity is one of the island's major health issues: according to the ARS, nearly one in two women (47%) is obese, and one in ten people aged 30–69 is diabetic. Consequently, hypertension and diabetes show record prevalence on the territory.
The island's fragile health system continues to face heavy pressure. In 2023, 1,792 medical evacuations (ÉVASAN) were recorded, representing a 13% increase compared with the previous year. Home-hospitalization services (HAD) have expanded, with 276 stays in 2023 in the polyvalent/perinatal HAD, and a second HAD unit opened by a private association. The HAD rate reached 26 per 100,000 inhabitants — close to national levels. Post-acute and rehabilitation care also expanded with the addition of 50 new beds, although demand continues to rise.
In 2020, while the island was already facing a dengue outbreak, it was struck hard by the COVID-19 pandemic, with social and health conditions preventing effective implementation of protective measures, and in 2024–2025, Mayotte confronted a significant chikungunya outbreak and the aftermath of Cyclone Chido, both of which strained medical infrastructure and highlighted the island's continuing vulnerability.
Security[edit]
Mayotte is the French department with the highest rate of delinquency. However, its crime rate remains lower than that of other overseas departments (notably French Guiana), likely due to the relative absence of large criminal organizations and major arms or drug trafficking networks.
In 2024, the island saw 10,968 registered offenses — a crime rate of approximately 42.8 per 1,000 inhabitants, placing Mayotte 45th in the ranking of the most dangerous departments in France. Property crimes (thefts, burglaries) and violent crimes against persons remain particularly common: 14.4 per 1,000 for thefts and burglaries, 16.2 per 1,000 for assaults and other violence against persons.
Home burglaries, while lower than in the mid-2010s, still affect many households; 442 burglaries of dwellings were recorded in 2024, compared to 405 in 2023. Cases of assaults, both non-familial and domestic, remain frequent, though slightly decreasing compared to 2023. Vandalism, drug-related offenses, and gang-related violence continue to challenge local law enforcement and public security.
Some of these figures, however, have been declining since 2015: after two years of significant increases, the authorities noted a 9% drop in overall delinquency in 2017, followed by an 8.8% decrease in 2018, and a further 1.9% decrease in 2019. The clearance rate by law enforcement has been steadily rising. A modern prison with 278 places exists in Majicavo (in the commune of Koungou), though it has an average occupancy rate of 110%.
The number of juvenile offenders has been continuously rising since departmentalization. 1,505 minors were held in police custody in 2017 (representing 30.3% of those implicated), but their age and their numbers limit the coercive measures that can be applied. A reinforced educational centre, the Open Environment Educational Support (Action éducative en milieu ouvert, AEMO), opened in 2018 with 400 places. However, more than half of the island's population is under 18, and Minister Nicole Belloubet estimates that the number of unaccompanied minors—those without any legal guardian (due to expelled parents, deceased parents, or abandonment)—is between "3,000 and 6,000." Only "a tiny portion" are cared for by Child Protective Services (Aide sociale à l'enfance, ASE).
The pronounced insecurity in the territory has regularly triggered social movements, notably in 1993, 2001, 2011, and 2018.
The main drug circulating in Mayotte since 2011 is known as la chimique. It consists of rolling tobacco soaked in a 90° alcohol solution in which a concentrated synthetic cannabinoid is dissolved, usually mixed with leftovers of psychotropic medications (anxiolytics, veterinary anesthetics, etc.) and sometimes detergents or other chemicals. Its composition varies greatly from one batch to another, as do its effects, which can be extremely harmful. Police report effects ranging from gratuitous and extreme aggression to loss of consciousness, and even a form of zombification that leaves intoxicated individuals highly vulnerable to abuse.
In terms of road safety, recent data shows a significant change: while Mayotte recorded 8 road deaths in 2017, the year 2022 registered 16, doubling the toll in five years. Between 2017 and 2021, 49 people were killed on the island's roads. Men account for 84% of victims, and vulnerable road users — motorcyclists and pedestrians — represent nearly 74% of all fatalities. At the scale of the overseas territories, 2023 shows an overall decline in road deaths, with 231 fatalities compared to 283 in 2022, indicating a general improvement. The maximum speed is 70 km/h on the national road, and frequent traffic jams likely curb reckless driving. Islam also contributes to a lower rate of alcoholism.