Bernabé Córdoba was born in Bagaces, Guanacaste, Costa Rica on 11 June 1915, to parents Antolin and Carolina Córdoba. Growing up on a farm, he assisted his family in growing sugar cane, which he would grind in their sugar press. He was married to Ofelia Villegas Vargas, with whom he had two daughters: Zaida and Sara.
In 1976, at the age of 61, he moved with his family to Salitral, Santa Ana, San José, where he resides today.
Following the death of 110 year old Juan Gabriel Hernández Matamoros on 20 January 2024, he became the oldest documented and undisputed living man in Costa Rica.