Kim Sejeong ( 김세정 ) Age, Height, Weight, Husband, Drama List, Net Worth 2026
Kim Sejeong (김세정) is a South Korean singer, songwriter, and actress who first rose to fame as the runner-up of the survival show Produce 101 and a member of the project group I.O.I. She later debuted with Gugudan and has built a successful dual career in music and acting, starring in popular dramas such as School 2017, The Uncanny Counter, Business Proposal, and Brewing Love.
Kim Sejeong was born on August 28, 1996, in Gimje, North Jeolla Province, South Korea. She later moved to Anyang, Gyeonggi Province. she is 29 years old. Her zodiac sign is Virgo. She has an older brother. Her parents divorced when she was young, and she was primarily raised by her mother.
Kim Sejeong first appeared on K-Pop Star 2 in 2012. She gained massive attention in 2016 by finishing second on Produce 101, debuting with I.O.I. The same year, she joined Jellyfish Entertainment’s girl group Gugudan and released her first solo single “Flower Way,” which achieved an all-kill on music charts.
After I.O.I disbanded, she continued with Gugudan (and its subunit SeMiNa) while expanding into acting. Her acting debut came with the lead role in School 2017 (2017), for which she won Best New Actress at the KBS Drama Awards. She later starred in I Wanna Hear Your Song (2019), the hit fantasy series The Uncanny Counter (2020–2023), the global success Business Proposal (2022), Today’s Webtoon (2022), Brewing Love (2024), and Moon River (2025). As a solo artist, she has released EPs such as Plant (2020) and her first full album Door (2023).
Kim Sejeong Biography
Kim Sejeong has an older brother and was raised primarily by her single mother after her parents’ divorce. She keeps her romantic life private and has denied various dating rumors over the years.
Physical Appearance
Height
164 cm (5’5″)
Weight
Approx. 48 kg
Eye Color
Dark brown
Hair Color
Black
Body Type
Slim
Body Measurements
Not publicly detailed
Kim Sejeong Drama List
Format: Title (Year) – Role
School 2017 (2017) – Ra Eun-ho
I Wanna Hear Your Song (2019) – Hong Yi-young
The Uncanny Counter (2020–2023) – Do Ha-na
Business Proposal (2022) – Shin Ha-ri
Today’s Webtoon (2022) – On Ma-eum
Brewing Love (2024) – Chae Yong-ju
Moon River (2025) – Park Dal-i
Kim Sejeong Net Worth
Kim Sejeong’s estimated net worth is reported in the range of $5–8 million USD. Her income sources include music releases and performances, acting roles, brand endorsements (including luxury and beauty brands), and variety appearances.
Social Media Presence
Kim Sejeong is active on Instagram under @clean_0828 (personal) and official accounts. She also has a YouTube channel and maintains a presence on other platforms to connect with fans.
FAQs
What is Kim Sejeong famous for?
Finishing second on Produce 101, being a member of I.O.I and Gugudan, and starring in Business Proposal and The Uncanny Counter.
