The U.S. Census Bureau defines the ethnonym Hispanic or Latino to refer to "a person of Cuban, Mexican, Puerto Rican, South or Central American, or other Spanish culture or origin regardless of race" and states that Hispanics or Latinos can be of any race, any ancestry, any ethnicity.
Similarly, you may ask, what is the predominant race in Costa Rica?
Costa Rica has four small minority groups: Mulattos, Blacks, Amerindians and Asians. About 8% of the population is of Black African descent or Mulatto (mix of European and black) who are called Afro-Costa Ricans, English-speaking descendants of 19th century black Jamaican immigrant workers.
Is it Latino or Hispanic?
While the two terms are sometimes used interchangeably, "Hispanic" is a narrower term that only refers to persons of Spanish-speaking origin or ancestry, while "Latino" is more frequently used to refer generally to anyone of Latin American origin or ancestry, including Brazilians.