Compared to China and Japan, family and population studies of pre-modern Korea have not been widely available to scholars outside Korea. As a necessary step to increase scholarship in Korean historical demography, we introduce major historical materials currently available in Korea as useful for historical studies, summarizing demographic variables provided, the type of population covered, and the historical period referred in those historical materials. In particular, we focus on genealogies and household registers that provide demographic information of Korean population before the 20th century. We describe major features of those Korean materials as demographic sources, highlighting similarities and differences as compared to corresponding Chinese historical materials. Korean historical data showing their unique features, along with comparability with other East Asian data, have potential to expand the field of historical demography in East Asia.