The discipline of demography deals with the size composition distribution and characteristics of populations and how the factors interact and change. Demography also includes the internal and external dynamics of population. Data collection is hampered because censuses are infrequent so records of births marriages and deaths are crucial for interim statistics especially in developing nations. Demographers interest is in population variables and their theroetical importance to societal phenomena; in general to understand and explain population phenomena. Demography needs to develop more integrated theory to fuse diverse findings and needs to facilitate organizational context. Governments are forming special population commissions and universities are increasing research activity which aid the demographers progress for a more professional discipline.