Ho Chi Minh city topped the list with 1,547 new infections, followed by Binh Duong (688) and Tay Ninh (564).
The capital city of Hanoi detected 260 new cases.
Additional 4,776 recoveries were reported on the same day, taking the total number of patients given the all-clear to 910,276.
More than 108 million COVID-19 vaccine doses have been administered to date.