Río Prieto, Yauco, Puerto Rico
Río Prieto is a barrio in the municipality of Yauco, Puerto Rico. Its population in 2010 was 680.History
The United States took control of Puerto Rico from Spain in the aftermath of the Spanish-American War under the terms of the Treaty of Paris of 1898. In 1899, the United States conducted its first census of Puerto Rico finding that the population of Río Prieto barrio was 799.