Dec 28, 2021 · Geography. Location. Southeastern Asia, bordering the Gulf of Thailand, between Thailand, Vietnam, and Laos. Geographic coordinates. 13 00 N, 105 00 E. Map references. Southeast Asia. Area. total: 181,035 sq km. land: 176,515 sq km. water: 4,520 sq km. country comparison to the world: 90. Area - comparative.