Where in Vietnam is cheapest city to live and work? According to statistics of 2021, taking Hanoi as the base indicator, the top 10 localities with the most expensive cost of living include: Hanoi (100%), Quang Ninh (99.5%), Ho Chi Minh City (98.98%), Da Nang (96.4%), Hai Phong (95.58%), Lao Cai (94.75%), Son La (94.58%), Lang Son (94.55%) %), Khanh Hoa (94.55%) and Dien Bien (94.41%).