In 1954 he was elected to represent the Builsa electoral district in the Legislative Assembly, he was re-elected in 1956 and maintained his post as the member of parliament for the constituency until 1965.
Prior to politics Afoko was a trained teacher who taught at Fumbisi, a town in the Builsa District of Ghana.
Afoko was born in 1923 at Sandema in the then Northern Territories of the then Gold Coast (now in the Upper East Region of Ghana).
[7] He was re-elected in the 1956 election again on the ticket of the CPP to represent Builsa.
In July 1957 Afoko resigned from the CPP to join the Northern People's Party.