Short answers, pulled from the story.
Mestizos constitute the majority population in half of the countries in the region and form large minorities in nearly all the others. This group represents the defining characteristic of nations like Mexico and Peru. The process of intermixing began in the early decades following the arrival of Iberian colonists in the late 15th century.
The most significant migratory destinations for Latin Americans are the United States, Spain, France, Canada, Italy, and Japan. Over 3.3 million Colombians live abroad, more than 2 million Brazilians reside outside their home country, and over 1.5 million Salvadorians live in the United States alone. The Japanese Brazilian community is the largest ethnic Japanese community outside of Japan itself, estimated at 1.5 million people.
Spanish serves as the official language of most mainland countries and Puerto Rico, while Portuguese is the sole language of Brazil. French holds sway in Haiti and the French overseas departments of Guadeloupe and Martinique. In Paraguay, Guaraní is spoken by the majority of the population and is co-official with Spanish.
Approximately 90 percent of the population identifies as Christian, with Roman Catholicism being the dominant faith claimed by about 71 percent of the people. The region hosts the world's second-largest Christian population after Europe. Indigenous religions and rituals continue to be practiced in countries with significant indigenous populations, such as Bolivia, Guatemala, and Peru.
There are populations of over 20 million Black people in Brazil and more than 9 million in Haiti. Millions of African slaves were brought to the region from the 16th century onward, with the Caribbean and Brazil serving as the primary destinations. The legacy of slavery also produced the zambos, people of mixed Black and Indigenous ancestry, who were especially prevalent in Colombia and Brazil.
White Latin Americans remain the largest single ethnic group, accounting for more than one-third of the region's total population. This group is primarily of Spanish, Portuguese, and Italian ancestry, with the latter forming the largest immigrant group after independence in the 1810s and 1820s. Countries like Argentina, Chile, Costa Rica, Cuba, and Uruguay are dominated by white populations.