Vietnam portal Urban district (Vietnamese: quận), or borough, is a type of second tier subdivision on Vietnam is divided into 713 units along with district, provincial city, and town have equal status.
[1] The urban districts can only subordinate to municipality as the Second Tier unit.
Before 1975, in South Vietnam, all second-level administrative subdivisions were called districts (quận), regardless of urban or rural areas.
For example, quận Châu Thành, Vĩnh Long Province is in the urban area of present Vĩnh Long city, and quận Trà Ôn was the rural area of present Vĩnh Long Province.
[2] Ho Chi Minh City with 19 urban districts had the most.