Debut age of K-pop groups that debuted in 2021
As of 2026-10-19, Wikidata lists 15 K-pop groups that debuted in 2021; the 43 members who debuted that year had a median debut age of 19 (range 14–26).
| Median debut age | 19 (14–26, n=43) |
|---|---|
| Female members | 18 (n=29) |
| Male members | 20 (n=14) |
| Members without Korean citizenship | 12% (5/42) |
Method and exclusions
- Based on Wikidata; may be incomplete. Counts the 737 music groups tagged with the K-pop genre on Wikidata (CC0, pulled 2026-10-19) and their members. Groups and members missing from Wikidata or without data are left out.
- Debut date is the group's start of activity (P2031), or its founding date (P571). Members who joined later use their join date (P580). Debut age is full years on the debut date.
- Excluded: records with no birth or debut date or only a year, and debut ages under 10 or over 40. Medians and ranges need at least 5 members.
- 751 of 2307 member records counted (excluded: birth date missing or year-only 93, debut date missing or year-only 1462, out of range 1).
- Individual birth dates are not published; only counts, medians and ranges.
Aggregate data (CSV, CC0): /data/debut-stats.csv