This paper examines the dynamics surrounding enrolment interventions that have been put in place by key stakeholders in promotion of the 100% enrolment rates in primary schools. The study was guided by the following objective: to determine enrolment dynamics of primary schools in Eldoret West Sub County, Kenya. The study was based on the social demand approach, a model which when applied to education, refers to the aggregate/total demand for school places in a nation (Zimmer, 1985). The researcher adopted a survey research design which aimed at obtaining complete and accurate findings. The design was appropriate for the study since the researcher intended to critically examine enrolment dynamics in Eldoret West, Kenya. From the 177 primary schools in the sub county, a total of 53 schools were sampled. All the 53 Headteachers and all the 5 Quality Assurance Officers in the Education sub county office participated in the study. Data was collected by use of questionnaires, interviews and documents analysis. It was established that there was a significant growth in enrolment due to current government policies. The stakeholders should be mobilized to provide resources needed to expand primary school facilities to ensure equal access to education opportunities for all.