Position: Leader, Main Dancer, Vocalist, Rapper (Hyoyeon)
Birthdate: June 12, 1991
Birth & Home: Nevada, USA
Seoul, South Korea
Ethnicity: Korean-American
Languages: English(Nat) & Korean(Flu)
Height: 165cm or 5'4"
Weight: 50kg or 110lbs
Lover: E:psilon (AlphaBAT)

Position: Lead Dancer, Vocalist, Rapper (Yuri)
Birthdate: November 16, 1991
​Birth & Home: Sao Paulo, Brazil
Seoul, South Korea
Ethnicity: Korean-Brazilian
Languages: Portuguese(Nat), Korean(Con), English(Con)
Height: 166cm or 5'4"
Weight: 50kg or 110lbs
Lover: None

Position: Main Vocalist 2 (Jessica)
Birthdate: March 7, 1992
​Birth & Home: California, USA
Seoul, South Korea
Ethnicity: Korean-American
Languages: English(Nat) & Korean(Flu)
Height: 174cm or 5'7"
Weight: 51kg or 112lbs
Lover: Lay (EXO)

Position: Face Of Group, Lead Dancer, Vocalist 1 (Sooyoung)
Birthdate: March 9, 1994
​Birth & Home: Lauoka, Fuji
Sydney, Australia
Ethnicity: Korean-Australian-Fujian
Languages:  English (Nat), Korean (Flu), Chinese (Flu), Japanese (Con)
Height: 179.5 com or 5'10"
Weight: 54kg or 120lbs
Lover: Xero (Topp Dogg)

Position: Main Vocalist 1 (Taeyeon)
Birthdate: December 27, 1995
​Birth & Home: New York, USA
Seoul, South Korea
Ethnicity: Korean-American
Languages: English(Nat) & Korean(Flu)
Height: 163cm or 5'3"
Weight: 45kg or 99lbs
Lover: Hoya (Infinite)

Position: Lead Vocalist 3 (Seohyun)
Birthdate: June 25, 1997
​Birth & Home: Oahu, USA
Ethnicity: Korean-French
Languages: English(Nat), French(Flu), Korean(Flu)
Height: 170cm or 5'5"
Weight: 50kg or 110lbs
Lover: Benji (B.I.G)
- Joined the group on July 14, 2017 + debuted with group on September 12, 2017

Position: Lead Vocalist 1 (Sunny)
Birthdate: -
​Birth & Home: -
Ethnicity: -
Languages: -
Height: -
Weight: -
Lover: -

Position: Visual & Lead Vocalist 2 (TIffany)
Birthdate: January 14, 1997
​Birth & Home: San Fransisco, USA
Seoul, South Korea
Ethnicity: Korean-American
Languages: English(Nat) & Korean(Flu)
Height: 155cm or 5'0"
Weight: 48kg or 105lbs
Lover: Hyuk (VIXX)
- Joined the group on July 14, 2017 + debuted with group on September 12, 2017

Position: Maknae, Lead Dancer , Vocalist 2 (YoonA)
Birthdate: March 3, 1998
​Birth & Home: Tampines, Singapore
Kallang, Singapore
Ethnicity: Chinsese-Malay
Languages: English(Nat), Malay(Flu), Mandarin(Flu), Korean(Flu)
Height: 154cm or 5'0"
Weight: 43kg or 94lbs
Lover: Seungkwan (Seventeen)
- Joined the group on August 14, 2015 + debuted with group on August 30, 2015