This paper seeks to establish the effect of region of residence on the initiation of child bearing in Kenya and to determine whether its effect has changed overtime. The data used is drawn from the 1998 and 2003 Kenya Demographic and Health Surveys. The Cox proportional hazard models are used to analyse the data. The results revealed that the region of residence has a significant effect on the initiation of child bearing in Kenya and that the effect remains significant even in the presence of the controls for education, age at first marriage, type of place of residence and religion. The effect of the region of residence on in the initiation of childbearing remains more or less the same across the three generations.