This book illustrates the impact of tsunami disaster on demography of Sri Lanka and thus those who are interested in studying the relationship between natural disasters and demography will find this book very useful. This book also provides a sound scientific base for the population planners to adjust their plans according to the demographic impact of the Tsunami disaster on future population growth. Most importantly, the methodology proposed to compute risk of death associated with disasters can be used to compute the same for other disaster affected areas. Furthermore, the social planners will undoubtedly find this study very useful because it reveals how elderly women become more vulnerable due to a natural disaster in the context of accommodation, livelihood and health aspects of the elderly population.