With the additional cases, Hoa Binh leads Sunday's tally with 36,572 cases, followed by Hanoi with 29,578 and Bac Giang with 29,046.
On Sunday, 87 deaths were confirmed, including 12 in Hanoi, pushing the death toll to 40,813 cases, or 1 percent of the total infections.
65,445 Covid patients were announced recovered on the same day, increasing the number of recovered patients to 2,681,447.
Since the fourth coronavirus wave hit the country in April last year, Vietnam has recorded over 4.35 million cases.