Fifty-one Covid-19 deaths and 4,161 cases were reported on Saturday, bringing the toll to 1,870 fatalities and 240,452 cases.
Of the new cases, 4,089 were in the general population and 72 among prison inmates.
Since April 1, when the third wave began, there have been 211,589 Covid-19 patients, 169,249 of whom have recovered.
The cumulative total since the pandemic started early last year is 240,452 cases, 196,675 of whom recovered. Deaths total 1,870, with 1,776 coming since April 1.
The 51 people who died in the past 24 hours were aged from 15 to 92 years old, with an average age of 67. Thirty-one of them were men and one was a Chinese national, the The Centre for Covid-19 Situation Administration (CCSA) said in its briefing on Saturday afternoon.
Twenty-eight of those who died had hypertension and 21 had diabetes, while six had no chronic illnesses. Eighteen had caught the disease from relatives.
Twenty-three of the latest fatalities were in Bangkok, seven in Nonthaburi, four in Samut Prakan, three each in Nakhon Pathom, Pathum Thani and Pattani and one each in Phuket, Chon Buri, Chaiyaphum, Prachuap Khiri Khan, Chiang Rai, Narathiwat, Yala and Nakhon Ratchasima.
Bangkok had the most new cases (1,276), followed by Samut Prakan (322), Chon Buri 320, Samut Sakhon (291), Pathum Thani (228), Songkhla (215), Nonthaburi (196), Pattani (150), Nakhon Pathom (135) and Yala (135).
Of the new cases, 19 were imported cases. Of the local infections, 3,035 were confirmed at hospitals and 1,035 via mass testing.
The 19 imported cases were arrivals from Somalia, Afghanistan, Indonesia, Malaysia and Cambodia. They were 17 Thai returnees, one Afghan doctor and an Indonesian sports referee.
Among the Thai returnees, five crossed the border illegally from Malaysia (3) and Cambodia (2). The others entered the country via legal border checkpoints in Sa Kaeo and Chanthaburi provinces.
Of the 41,907 people in hospital, 1,662 were critically ill and 470 dependent on ventilators.
Another 324,055 people were vaccinated on Friday, bringing the total to 8.98 million, 6.43 million of whom have received the first dose and 2.55 million with the second dose.
Global Covid-19 cases rose 408,765 in 24 hours to 181.18 million. The worldwide death toll went up 8,728 to 3.92 million. The United States had the most cases at 34.48 million, up 15,237. Thailand ranked 76th.