Uruguay: Language & Religion

Spanish is the official and dominant language of Uruguay, spoken by the vast majority of the population. The variety used throughout the country belongs to the Rioplatense Spanish family, shared with neighboring Argentina, and is marked by distinctive intonation and vocabulary shaped by heavy Italian immigration in the nineteenth and twentieth centuries. In the northeastern border region near Brazil, a Portuguese-influenced dialect known as fronterizo, or riverense, is spoken by communities along the frontier, blending Rioplatense Spanish with Brazilian Portuguese.

Uruguay's approach to religion has been distinguished within Latin America by an unusually strict separation of church and state. The country's original 1830 constitution designated Roman Catholicism as the state religion, but a constitutional reform in 1917 formally separated church and state, removing religious oversight from public institutions such as schools and hospitals and establishing one of the region's earliest secular legal frameworks.

That legacy of secularism is reflected in Uruguay's religious composition today. Roman Catholics account for roughly 47 percent of the population and other Christian denominations for about 11 percent, while nearly a quarter of Uruguayans describe themselves as unaffiliated with any organized religion, and close to 17 percent identify as atheist or agnostic. These figures make Uruguay one of the most secular countries in the Western Hemisphere and the least religious nation in South America by several measures.