You're staring at a map of the Indian Ocean. Or the EU flag flying over a tropical volcano. But then someone mentions the Comoros claim. Even so, réunion. Practically speaking, mayotte. You know they're French — or you think you do. Two tiny dots off the coast of Madagascar. Or the fact that you need a Schengen visa for one but not the other.
It gets messy fast.
Here's the short version: both islands belong to France. Full stop. But the how and why — and what that actually means for travelers, residents, and geopolitics — is where things get interesting Simple, but easy to overlook..
What Are Réunion and Mayotte
Réunion and Mayotte are French overseas departments. That's the administrative label. In practice, they're as French as Lyon or Marseille — just 9,000 kilometers from Paris It's one of those things that adds up..
Réunion: the volcanic heavyweight
Réunion is the bigger player. 2,512 square kilometers. That said, nearly 900,000 people. A massive shield volcano, Piton de la Fournaise, that erupts every few months like clockwork. Another volcano, Piton des Neiges, dormant but towering at 3,070 meters — the highest peak in the Indian Ocean.
The island was uninhabited until the French showed up in the 1640s. They named it Île Bourbon. That said, coffee, sugar, vanilla — plantation economy, enslaved labor, the usual colonial story. Slavery abolished in 1848. Indentured workers brought in from India, China, Africa. That mix created the Creole culture you see today: Catholic churches next to Tamil temples, mosques down the street from Chinese pagodas Small thing, real impact..
It became an overseas department in 1946. Worth adding: that meant French laws apply. Which means french currency. French social security. The works.
Mayotte: the complicated little sister
Mayotte is smaller. 374 square kilometers. Consider this: around 320,000 people — but growing fast. Two main islands, Grande-Terre and Petite-Terre, plus a lagoon that's one of the largest in the world.
Here's where it gets weird. Mayotte was part of the Comoros archipelago. In 1974, the Comoros voted for independence. Mayotte voted against it. Now, 63% said no, we want to stay French. Worth adding: they voted again in 1976. Worth adding: 99. 4% said stay French.
The Comoros never accepted it. On the flip side, france vetoes them at the Security Council. Now, the UN General Assembly has passed something like 20 resolutions saying Mayotte belongs to Comoros. They still claim Mayotte. Stalemate.
Mayotte became an overseas department in 2011. Before that, it was a "collectivité départementale" — a weird halfway status. Now it's fully integrated. Euro, French law, French everything.
Why It Matters / Why People Care
You might wonder: why does anyone fight over two small islands in the middle of nowhere?
The Exclusive Economic Zone jackpot
This is the real prize. Here's the thing — france has the second-largest EEZ in the world — 11 million square kilometers. Most of it comes from its overseas territories. Réunion alone contributes 315,000 square kilometers. Mayotte adds another 70,000.
That's fishing rights. Seabed minerals. Potential oil and gas. Strategic military positioning. Because of that, france isn't giving that up. Neither would any other country.
The EU's southernmost border
Both islands are part of the European Union. Plus, outermost regions, technically. That means EU law applies — with some adaptations. Structural funds flow in. The euro is legal tender. But Schengen? That's where it gets tricky Easy to understand, harder to ignore..
Réunion is not in the Schengen Area. Mayotte isn't either. You need a specific visa for each — or a French national visa that covers overseas territories. A standard Schengen visa won't get you in. This catches people out constantly.
Migration pressure on Mayotte
Mayotte is the poorest French department. Thousands drown. But it's rich compared to the Comoros (GDP per capita ~€1,300). GDP per capita around €9,000 — compared to €35,000 in mainland France. The lagoon between Mayotte and Anjouan (the nearest Comorian island) is 70 kilometers. Consider this: people cross in kwassa-kwassa — small, overloaded fishing boats. Thousands more make it Small thing, real impact..
Half of Mayotte's population is estimated to be undocumented migrants. Now, the maternity ward in Mamoudzou is the busiest in France — 10,000+ births a year, mostly to Comorian mothers. Birthright citizenship (droit du sol) applies differently here: a child born in Mayotte to foreign parents only gets French citizenship if at least one parent has been legally resident for three months. France changed the law specifically for Mayotte.
It's a humanitarian crisis. A political flashpoint. And a daily reality.
How It Works (Political Status)
Let's break down the legal architecture. It matters if you're moving there, doing business, or just trying to understand the news.
Overseas department = overseas region
Since 1982, every overseas department is also an overseas region. Two councils: a Departmental Council (conseil départemental) and a Regional Council (conseil régional). Here's the thing — they merged into a single assembly in Réunion in 2018 — the "Assemblée unique. " Mayotte kept them separate.
They have the same powers as their mainland counterparts. Social welfare, infrastructure, high schools (department), economic development, transport, vocational training (region) Most people skip this — try not to..
French law applies — mostly
The principle is "legislative identity." Laws passed in Paris apply automatically unless they specify otherwise. But there's a mechanism called "adaptation" — the local assembly can ask for modifications to fit local realities.
Examples:
- Labor law: same minimum wage (SMIC) but different overtime rules for seasonal agriculture
- Property law: special rules for "terrain vague" (unregistered land) which is huge in Mayotte
- Tax: lower VAT rates (8.5% vs 20% mainland), no wealth tax on real estate
Representation in Paris
Each island sends deputies to the National Assembly and senators to the Senate. In real terms, they question ministers. They vote on French laws. Mayotte: 1 deputy, 2 senators. Réunion: 7 deputies, 4 senators. They're not observers — they're legislators.
So, the President of France is their head of state. The Prefect (préfet) represents the state locally — appointed by Paris, runs police, immigration, state services.
The Comoros claim: legal vs political reality
International law is messy here. The UN says decolonization means the colonial borders at independence. Comoros became independent in 1975 within its colonial borders — which included Mayotte. France says Mayotte exercised self-determination separately.
The tide that carries people across the Mozambique Channel also carries a steady stream of hopes, fears and, inevitably, friction. In the past five years, the number of arrivals has risen sharply, pushing reception facilities beyond their original capacity. Temporary shelters erected near the port of Mamoudzou now host families who have been there for months, while the local health system — already stretched by the high birth rate — faces additional pressure from untreated injuries and communicable diseases that accompany long sea journeys The details matter here..
Non‑governmental organisations have stepped in to fill gaps that the state cannot meet on its own. Médecins Sans Frontières runs a mobile clinic that visits the makeshift camps twice a week, offering prenatal care, vaccinations and basic primary‑care services. Day to day, the Red Cross has set up a language‑exchange programme that pairs volunteers with newly arrived migrants, aiming to ease the cultural isolation that often fuels resentment on both sides. These initiatives, while commendable, are a patchwork solution; they cannot replace the systemic reforms that the island’s elected officials have been urging for years Not complicated — just consistent. Worth knowing..
Education is another arena where the reality of undocumented status collides with legal frameworks. Because of that, children who are born on the island automatically acquire the right to attend public schools, yet the lack of identity documents creates bureaucratic hurdles. Teachers report that classrooms in the northern districts are now composed of up to 40 % students whose parents are in the country without regularisation. To address this, the regional council has piloted a “digital enrolment” platform that allows families to register their children using a temporary identifier issued by the prefecture, thereby reducing paperwork delays and preventing children from falling through the cracks.
Economic migration, rather than purely humanitarian movement, also shapes the demographic landscape. Small‑scale agriculture, especially the cultivation of ylang‑ylang and vanilla, relies heavily on seasonal labour. That's why local planters have begun to formalise contracts with migrant workers, offering housing in exchange for a few weeks of work each harvest. This informal arrangement has sparked a debate within the Departmental Council: proponents argue that it stabilises the agricultural output and provides a pathway to regularisation, while opponents warn that it perpetuates a two‑tier labour market that undermines the principle of equal rights.
This is where a lot of people lose the thread.
The political arena reflects these tensions. But the centrist coalition that currently holds the presidency of the Departmental Council has made integration policy a cornerstone of its platform, proposing a “pathway to residency” that would grant legal status to long‑term residents after a five‑year period of continuous presence, provided they pass a basic civic knowledge test and demonstrate stable employment. Still, critics, particularly members of the more nationalist opposition, argue that such a measure could encourage further migration and dilute the island’s French identity. The debate has become a focal point in the upcoming regional elections, with campaign rallies drawing large crowds that chant both “Mayotte is French” and “Our land, our rules.
Judicial decisions have also begun to shape the daily reality for undocumented residents. In 2023, the Administrative Court of Appeal ruled that the prefecture could not arbitrarily deny access to social housing for families who had been living in the territory for more than two years, ordering the allocation of 150 units within six months. The ruling was hailed as a victory for the rights of long‑term residents, but the implementation has been uneven, with some municipalities lagging behind due to bureaucratic inertia It's one of those things that adds up..
Looking ahead, the convergence of humanitarian concerns, economic needs and sovereignty questions creates a complex tableau for Mayotte. The island’s future will likely be decided by how effectively it can balance the imperatives of international law, French constitutional principles and the lived experiences of its residents. Policymakers are exploring a hybrid model that combines a streamlined residency process with targeted investments in health, education and livelihood programmes, aiming to transform a crisis into an opportunity for social cohesion.
In sum, Mayotte stands at a crossroads where legal ambiguities meet urgent human needs. The island’s ability to forge a sustainable path — one that respects both its French affiliation and the aspirations of those who have made it their home — will determine not only the well‑being of its population but also the broader narrative of how France navigates the challenges of its overseas territories in an increasingly interconnected world.
