Primero is an urban barrio located in the southern section of the municipality, within the Ponce city limits, and southwest of the traditional center of the city, Plaza Las Delicias.
Barrio Primero is bounded on the North by Villa Street, on the South by Ferrocarril and Dr. Ferran Streets, on the West by PR-2R (Carretera Pámpanos / Calle Coto Canas), and on the East by Eugenio Maria de Hostos Avenue and Marina Street.[5]
In terms of barrio-to-barrio boundaries, Primero is bounded in the North by Barrio Segundo, in the South by Canas Urbano, in the West by Barrio Canas Urbano, and in the East by Barrio Cuarto. The communities of Ponce de Leon, Los Maestros, Mariani, and Pedro J. Rosaly are located in Barrio Primero.
Primero has 0.25 square miles (650,000 m2) of land area and no water area.[6] In 2000, the population of Primero was 3,550. The population density in Primero was 13,997 persons per square mile.[7][6]
In 2010, the population of Primero was 3,175 persons, and it had a density of 12,211.5 persons per square mile.[8]
^Barrios de Ponce.Archived 30 September 2015 at the Wayback Machine Antepasados Esclavos.(From: Pedro Tomás de Córdoba. Memorias geográficas, históricas, económicas y estadísticas de la Isla de Puerto Rico.) Retrieved 28 November 2014.