Joseph Konzolo Munyao was born on May 4, 1940, in Makueni District. He attended Kibauni Primary and Makueni Intermediate schools before proceeding to Machakos High School.
After completing high school, he was employed as a clerical officer by the Standard Chartered Bank. He began pursuing a career in accountancy, after which he left the bank for the public sector, joining the provincial administration as an accountant in 1965.
His had dreamt of becoming a provincial administrator but shelved the idea when he was told that if he became a DO, there was a chance he could be posted to his home area and effectively become his father’s boss.
His father was an assistance chief at the time. Munyao found that a “terrible” idea.
He entered politics during the 1963 inaugural General Election. when, at the age of 23, he contested what was then the Mombasa mainland seat, comprising Changamwe, Kisauni, and Mtongwe, but lost. He was elected member of Parliament in 1975 in his home district after winning a by-election after a successful petition challenging the election of Joseph Kalulu, who dislodged him four years later.
In 1988, Munyao lost to Johnson Makau in the notorious queue-voting elections. He won the Mbooni seat in 2002 and was appointed minister for Livestock in the Kibaki administration.
Today he is an accomplished dairy, poultry, and goat farmer at his Kalawa farm in Makueni. He also grows citrus fruits and cotton and runs his own firm, Plastic Products (K) Ltd.
He is currently a Democratic Party leader.