Member ages
SECRET NUMBER Member Ages and Birthdays
SECRET NUMBER member ages and birthdays ranked oldest to youngest, from Léa at age 30 to Min C at age 20.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  LéaFormer member | 30 | Aug 16, 1995 | Leader, Lead Vocalist |
| #2 |  DitaFormer member | 29 | Dec 25, 1996 | Main Dancer, Sub Vocalist |
| #3 |  JinnyFormer member | 28 | Jan 20, 1998 | Main Rapper, Lead Dancer, Lead Vocalist |
| #4 |  MinjiFormer member | 27 | Mar 31, 1999 | Main Vocalist |
| #5 |  SoodamFormer member | 26 | Nov 9, 1999 | Lead Dancer, Sub Vocalist, Visual, Center |
| #6 |  ZuuFormer member | 26 | Mar 24, 2000 | Lead Dancer, Lead Vocalist |
| #7 |  DeniseFormer member | 25 | Jan 11, 2001 | Main Vocalist |
| #8 |  NaviMember | 23 | Apr 13, 2003 | Main Rapper, Vocalist |
| #9 |  DindaMember | 22 | Aug 22, 2003 | Vocalist |
| #10 |  EbinMember | 22 | Jan 28, 2004 | Main Vocalist |
| #11 |  Min CMember | 20 | Apr 21, 2006 | Lead Rapper, Maknae |