46 Chapter 3 Migrated Household in Indonesia: An Exploration of the Intercensal Survey Data Salut Muhidin Demographic Institute University of Indonesia Abstract While research on Indonesian migration has been extensive, there have been few studies focused on family migration. The family as a social unit has a major contribution in making decisions related to migration, especially in developing countries (Root and De-Jong, 1991). Data from the 1995 Indonesian intercensal survey clearly documents this phenomenon by showing that more than 50% of internal migrants have cited marriage and family reunion, as well as economic, education, housing concerns as the primary triggers for migration. In addition, the survey provides information on family circumstances (such as family structure, family sources, and previous mobility experiences among family members) that allows for an analysis of migratory trends at the familial level. Adopting a model of family migration as developed by Root and De-Jong (1991), this paper aims to contribute to the study of family migration in Indonesia by exploring trends in family migration as documented in the intercensal survey data. However, the data only allows for the measurement of migrated households rather than family migration. Here, a migrated household is defined as a household in which at least one member is a migrant. A logistic regression model is utilised to explain the differentials in household migration by selected explanatory variables.