Vinh Long

Modern-day Vĩnh Long was part of Long Hồ dinh established by the Nguyen Lords in 1732, comprising of the provinces of Bến Tre, Trà Vinh, and parts of Cần Thơ. The area saw some of the heaviest fighting between the Tay Son brothers and the Nguyen Lords in the late 18th century; in 1784 Nguyen Hue defeated Siamese forces aiding Nguyen Anh at the Mang Thit River.

In 1951, the Southern Resistance Administrative Committee of the newly-declared Democratic Republic of Vietnam (North Vietnam) merged Vĩnh Long and Trà Vinh provinces into Vĩnh Trà Province. Vĩnh Trà Province existed until 1954 (however, as North Vietnam never administered the area for a significant period of time, this arrangement was not enforced). In 1957, the government of the Republic of Vietnam (South Vietnam) formed Vinh Long province, consisting of 6 districts: Châu Thành, Chợ Lách (now part of Bến Tre Province), Tam Bình, Bình Minh, Sa Đéc, and Lấp Vò. In 1961, Cái Nhum District was split from Chợ Lách. Đức Tôn and Đức Thành Districts were added in 1962, but joined the newly-formed Sa Dec Province in 1966. As of 1975, the province had 7 districts: Châu Thành, Chợ Lách, Tam Bình, Bình Minh, Minh Đức, Trà Ôn, and Vũng Liêm.

After the fall of Saigon and South Vietnam was reunited with North Vietnam, the new government merged Vĩnh Long with Trà Vinh Province, forming Cửu Long Province in 1976. In 1991, Cửu Long was again split into Vĩnh Long and Trà Vinh. At the time of the split, Vĩnh Long Province consisted of one city (Vĩnh Long) and 5 districts: Long Hồ, Vũng Liêm, Bình Minh, Tam Bình, and Trà Ôn.

In 1992, Mang Thít District was re-split from Long Hồ District. In 2007, Bình Tân District was created.