Rio de Janeiro (Brazil) is 17 times larger than Orange County, Florida.
Rio de Janeiro is one of the 27 states of Brazil. It has the third largest economy of Brazil, with the largest being that of the state of São Paulo, and the second being that of Minas Gerais. The state of Rio de Janeiro is located within the Brazilian geopolitical region classified as the Southeast. Wikipedia
Area: 2,599 km2 calculated
Orange County is a county located in the State of Florida. As of the 2010 census, the population was 1,145,956, making it the fifth-most populous county in Florida. The county seat is Orlando. Orange County is included in the Orlando-Kissimmee-Sanford, FL Metropolitan Statistical Area. Wikipedia