Population projection for many developing countries like Bangladesh could be quite a challenging task. The objective of this paper is to compare between different types of population models and to find out the most suitable population models for long term population projection. We represented some population models such as Malthusian model, Logistic model, Gompertz model and Schaefer model to investigate their solution and plot their graphs. We predicted the human population of Bangladesh during 1980 to 2080 by applying both Malthusian and Logistic models using the actual population data of...