It is currently represented by Elizabeth Rosa Vélez and Rubén Soto Rivera (both from the Popular Democratic Party).
Senatorial district III has an approximate population of 470,250.
[1] It covers the following municipalities: In previous distributions, the territory covered by senatorial district III has changed.
In 1983, the district included the municipalities of Isabela and Morovis.
Meanwhile Toa Alta was assigned to Arecibo.