The Korea CDC report on the country’s COVID19 cases on January 5, 2021 is as follows:

The first confirmed case in South Korea was on January 20, 2020. Almost a year later, the death toll is now over a thousand.
The table below shows a breakdown of the deaths by gender and by age:
| By Gender | Total and Percentage |
| Male | 507 |
| Female | 500 |
| By Age Group | |
| 80 years old and older | 559 (55.51) |
| 70-79 | 284 (28.20) |
| 60-69 | 121 (12.02) |
| 50-59 | 32 (3.18) |
| 40-49 | 7 (0.70) |
| 30-39 | 4 (0.40) |
| 20-29 | 0 |
| 10-19 | 0 |
| 0-9 | 0 |
Sources:
A Timeline of Korea’s Response to COVID19
https://www.csis.org/analysis/timeline-south-koreas-response-covid-19
Korea CDC Press Briefing, January 5, 2021
http://www.kdca.go.kr/board/board.es?mid=a20501000000&bid=0015&list_no=711691&act=view#