Comerío (Spanish pronunciation: [komeˈɾi.o]) is a municipality of Puerto Rico located in the center-eastern region of island, north of Aibonito; south of Naranjito and Bayamón; east of Barranquitas; and west of Cidra and Aguas Buenas. Comerío is spread over 7 wards and Comerío Pueblo (The downtown area and the administrative center of the city). It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.

Comerío was founded on June 12, 1826. Originally named "Sabana del Palmar", but later changed to Comerío, named after a local Indian chief Comerio.

Rivers are: Río Las Pailas, Río de la Plata and Río Hondo.(Hoya La Ajakana) (Rio Las Monjas) Rio Hondo La Canoa (Rio El Negro La Vuelta Del Dos)

Mountaintop view looking north from 18.21512N, 66.21719W

Comerío Center

First Methodist Church of Comerío was founded in 1904.

All municipalities in Puerto Rico are administered by a mayor, elected every four years. The current mayor of Comerío is José A. Santiago, of the Popular Democratic Party (PPD). He was elected at the 2000 general elections.

The city belongs to the Puerto Rico Senatorial district VI, which is represented by two Senators. In 2012, Miguel Pereira Castillo and Angel M. Rodríguez were elected as District Senators.