Member ages
CSR Member Ages and Birthdays
CSR member ages and birthdays ranked oldest to youngest, from Geumhee at age 21 to Yeham at age 20.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  GeumheeMember | 21 | Mar 1, 2005 | Member |
| #2 |  SihyeonMember | 21 | Mar 11, 2005 | Member |
| #3 |  SeoyeonMember | 21 | Mar 26, 2005 | Member |
| #4 |  YunaMember | 21 | Apr 23, 2005 | Main Dancer |
| #5 |  DunaMember | 21 | Apr 27, 2005 | Leader |
| #6 |  SuaMember | 20 | Jul 23, 2005 | Member |
| #7 |  YehamMember | 20 | Oct 6, 2005 | Main Vocalist, Maknae |