This research work is aimed at evaluating the effectiveness of radio in the mobilization of people for family planning in Ibadan, a residential city in Oyo State of Nigeria. Bearing in mind the impact of family planning programme, advertisement, drama e.t.c on the radio audience. The research method used was survey method and questionnaire being the instrument of data gathering. The findings got from the questionnaire shows that the people of Ibadan residence now know where to go and get the proper family planning method of their choice. And also what family planning is all about. This research work is hereby recommend that the Planned Parenthood Federation of Nigeria should not relent in their efforts of advocating for family planning programme.