The work is focused on creation of the composite indicators and their interpretation in the region of Southeast Asia. The indicators are chosen from three crucial fields of development, namely economic, social, and environmental field. The work also deals with regional disparities. Three countries were chosen representing the former area of Indochina, and Thailand as their closest neighbour. The theoretical part provides a basic overview of the key definitions and characteristics related to the issues. In the analytical part five composite indicators from each field of development are computed to evaluate the situation in the chosen countries. Correlation, cluster analysis, and regional disparities evaluation are contained in the analytical part as well. Finally, the data are assessed and recommendations are proposed.