
The question of the percentage of Muslims in Corsica regularly comes up in online searches. It reflects a legitimate curiosity about the religious composition of an island with a strong character. The answer, however, is more complex than a simple number: France prohibits the collection of religious statistics in its official census, which makes any estimation subject to debate.
Why no official figures exist on religion in Corsica
You may have already searched for a precise percentage of Muslims in Corsica on the Insee website. If you found nothing, that’s normal. The Insee does not record the religious affiliation of residents. This rule stems from the French legal framework, which prohibits ethnic and religious statistics in the general census.
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In practice, no one in France fills out a “religion” box on a census form. The only existing data comes from occasional, anonymized surveys conducted by polling institutes or researchers. These surveys cover the entire national territory and rarely go down to the scale of a region, let alone an island.
To approach the number of Muslims in Corsica on Quel Voyage, one must therefore cross-reference indirect indicators: geographical origin of immigrants, number of places of worship, figures provided by local associations. Each source has its limitations.
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The figure of 42,000 Muslims in Corsica: where does it come from
A figure circulates regularly: 42,000 people of the Muslim faith in Corsica. It was relayed by the Corsican media CorsenetInfos, which presented it as coming from a “census conducted on the island.” This number has been shared on social media and in various publications, sometimes without specifying its original source or methodology.
Relative to the total population of the island, this figure would place the proportion of Muslims around 12 to 13%. Other estimates, such as the one put forward by Nicolas Battini on Facebook, mention 20% of the population. The gap between these estimates shows the lack of a standardized method.
Without knowing the exact scope of these figures (regular practitioners, people of Muslim culture, individuals from majority Muslim countries), it is impossible to compare or validate them. A regular practitioner and a non-believing person of Maghreb origin may be counted the same way depending on the method used.
Immigration in Corsica: a different structure from the mainland
To understand the Muslim presence in Corsica, looking at the structure of island immigration helps. Unlike regions like Île-de-France or Hauts-de-France, immigration in Corsica is predominantly European.
According to Insee data on the immigrant population in Corsica, the main origins are:
- Portugal and Italy, which represent a significant share of immigrants settled on the island for several decades
- Morocco and Tunisia, which constitute the main communities from majority Muslim countries
- Other European countries (Romania, Spain), whose presence has increased in recent years
This distribution means that Maghreb immigration exists in Corsica but remains a minority compared to European immigration. Using geographical origin as an indicator of religion remains approximate: not all Moroccans are practicing Muslims, and there are also converted Corsicans.
Places of Muslim worship on the island
The number of mosques and prayer rooms provides another indirect indicator. Corsica has a few prayer rooms, mainly located in Ajaccio and Bastia. This number remains low compared to other French regions of comparable size.
The absence of a large, permanent mosque on the island reflects both a modest-sized community and local tensions on the issue. Several projects have been the subject of public debates over the years.

Questionnaire on cultural diversity in Corsican colleges: the controversy of 2024
In 2024, an event reignited the debate on religious data in Corsica. The Academy of Corsica distributed a questionnaire on “cultural diversity” in colleges, containing questions about the religion of families. Students were asked about their relationship with Allah, God, or Yahweh.
This questionnaire sparked a national controversy. According to TF1 Info, voices were raised to denounce the collection of religious data in the National Education system, potentially contrary to the principle of secularism. The rectorate had to remind that the responses remained anonymous and that no nominative database was being created.
This episode illustrates a French paradox: the demand for figures on religious composition is strong, but the legal framework makes their collection extremely regulated. In Corsica, where cultural identity is a sensitive issue, this tension is even more palpable.
Proportion of Muslims in Corsica: what can be reasonably asserted
In the absence of an official religious census, here is what the available sources allow us to state:
- The Muslim population in Corsica exists and is concentrated in the two main cities, Ajaccio and Bastia
- Estimates vary widely according to sources, ranging from a few percent to nearly 20%, reflecting incomparable methodologies
- No French public institution validates a precise percentage of Muslims at the Corsican level
- Given that immigration in Corsica is predominantly European, the proportion of Muslims there is likely lower than the national average
Caution is warranted regarding the figures shared online. A percentage taken out of its methodological context does not inform; it distorts. The religious composition of Corsica, like that of any French region, cannot be reduced to a number: it is part of a migratory history, a geography, and social dynamics unique to the island.