In this review, we present significant developments that have been made in the mathematical modeling and simulations of dropwise condensation. In dropwise condensation, vapor condenses in the form of distinct drops. Modeling of DWC involves modeling heat transfer through a single drop and applying it to a population of drops. In the first part, we discuss heat transfer through a single droplet and compare the approximate analytical solution with the results of numerical simulations. We also address the shortcomings of the analytical model. In the second part, we present methods utilized to find the drop size distribution which are coupled with a model for heat transfer through the single droplet to obtain overall dropwise condensation heat transfer rate. In particular, we discuss the population balance method and the Monte Carlo method to predict drop size distribution and heat transfer rate. We support our discussion with the results from the literature.