Along with Anón, Coto Laurel, Guaraguao, Quebrada Limón, Real, and San Patricio, and the coastal barrios of Canas and Capitanejo, Marueño is one of the municipality's nine bordering barrios.

[4] Marueño is located in the northwestern section of the municipality, northwest of the city of Ponce.

[5] The Pastillo River divides the barrio into two sections of fairly equal size.

The name could also be related to another word of Aragonese origin – "murueño" - meaning “the end of a field”, thus it could then refer to some boundary or refer to the low fence walls used to mark the edge of properties.

Marueño is home to Río Pastillo, which originates at its northern end and crosses the barrio in its entirety, dividing it in half.