The purpose of the paper is the delineation of local labor market areas in Korea on the basis of the travel-to-work flows surveyed at the basic administrative area. We sketch the local labor market areas using the commuting matrix derived from the sample data of the population and housing census. Given such Origin-Destination trips to work, the rule based agglomerative algorithm creates a partition of the territory such that all areas satisfy the relevant validity rule. As a result of analyzing different self-containment criteria of 60-70%, 65-75%, and 70-80%, local labor market areas are classified into 37, 34 and 30 areas, respectively. These results suggest that the current administrative areas and local labor market areas are not consistent with each other. Above all, the problem identified in this study is the spatial discrepancy between the jurisdiction of the Employment Welfare Plus Center, which provides employment-related services, and the regional labor market area. These spatial discrepancies are likely to reduce the efficiency of the administration performance, so adjustment is necessary.