Matuyas Bajo was in Spain's
gazetteers until Puerto Rico was ceded by
Spain in the aftermath of the
Spanish–American War under the terms of the
Treaty of Paris of 1898 and became an
unincorporated territory of the United States. In 1899, the
United States Department of War conducted a
census of Puerto Rico finding that the combined population of Matuyas Bajo and
Matuyas Alto barrios was 941. {{US Census population| align= center ==See also==