The population of Port Loko is ethnically diverse, although the Temne ethnic group predominate, and the Temne language is widely spoken among the people of Port Loko, along with the Krio, the national language of Sierra Leone.
Populasi Port Loko memiliki beragam etnis, meskipun kelompok etnis Temne mendominasi, dan Bahasa Temne digunakan secara luas di kalangan masyarakat Port Loko, bersama dengan Krio, yang merupakan bahasa nasional Sierra Leone.