Member ages
DIA Member Ages and Birthdays
DIA member ages and birthdays ranked oldest to youngest, from Seunghee at age 35 to Somyi at age 26.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  SeungheeFormer member | 35 | Jun 2, 1991 | Leader, Main Vocalist, Center |
| #2 |  EuniceMember | 34 | Sep 2, 1991 | Main Dancer, Main Vocalist |
| #3 |  JueunMember | 31 | Jun 7, 1995 | Main Vocalist |
| #4 |  HuihyeonMember | 31 | Jun 16, 1995 | Leader, Main Rapper, Lead Dancer, Sub Vocalist |
| #5 |  JennyFormer member | 29 | Sep 14, 1996 | Sub Vocalist, Visual |
| #6 |  YebinMember | 28 | Jul 13, 1997 | Main Vocalist |
| #7 |  EunjinFormer member | 28 | Aug 31, 1997 | Main Dancer, Lead Rapper, Sub Vocalist |
| #8 |  ChaeyeonMember | 28 | Dec 1, 1997 | Center, Face Of The Group, Sub Rapper, Sub Vocalist, Visual |
| #9 |  EunchaeMember | 27 | May 26, 1999 | Lead Vocalist, Lead Dancer, Sub Rapper, Maknae |
| #10 |  SomyiFormer member | 26 | Jan 26, 2000 | Maknae, Sub Vocalist, Lead Dancer |