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SF9 Member Ages and Birthdays
South Korea · Official roster: 8 (8 birthdays recorded)
SF9 members from oldest to youngest: IN SEONG (33), YOUNG BIN (32), JAE YOON (32), DA WON (31), ZU HO (30), YOO TAE YANG (29), HWI YOUNG (27), CHA NI (26). The oldest is IN SEONG, born July 12, 1993; the youngest is CHA NI, born January 17, 2000.
Debut date: Next debut anniversary: October 5
Fandom name: FANTASY (판타지)
Sources for support color / lightstick / fandom name: SF9 JAPAN OFFICIAL FANCLUB entry page (verified October 21, 2026)
Make a photocard for SF9 →Make fan photocards from your own photos. Free to download.Or make a SF9 phone wallpaper from your own photo →
Exports 8 recorded birthdays on this page, repeating yearly. This file does not update automatically; download and import it again after corrections. Set reminders in your calendar app.
Birthdays of all members
| Birthday | Member | Other spellings |
|---|---|---|
| November 23 | YOUNG BIN 永彬김영빈ヨンビンKim Young-bin | — |
| July 12 | IN SEONG 仁誠김인성インソンKim In-seong | — |
| August 9 | JAE YOON 在允이재윤ジェユンLee Jae-yoon | — |
| July 24 | DA WON 達淵이상혁ダウォンLee Sang-hyuk | — |
| July 4 | ZU HO 朱豪백주호ジュホBaek Zu-ho | — |
| February 28 | YOO TAE YANG 柳太陽유태양ユテヤンYoo Tae-yang | — |
| May 11 | HWI YOUNG 輝映김영균フィヨンKim Young-kyun | — |
| January 17 | CHA NI 澯熙강찬희チャニKang Chan-hee | — |
Roster source: SF9 JAPAN OFFICIAL SITE PROFILE (FNC ENTERTAINMENT) (retrieved August 30, 2026)
Age ranking of members (oldest to youngest)
We have full birth dates for 8 of 8 members (members with only a birth month and day are left out, since their age can’t be calculated). Ages update to today’s date.
| Rank | Member | Birthday | Age | Age at debut |
|---|---|---|---|---|
| 1 | IN SEONG | July 12, 1993 | 33 | 23 |
| 2 | YOUNG BIN | November 23, 1993 | 32 | 22 |
| 3 | JAE YOON | August 9, 1994 | 32 | 22 |
| 4 | DA WON | July 24, 1995 | 31 | 21 |
| 5 | ZU HO | July 4, 1996 | 30 | 20 |
| 6 | YOO TAE YANG | February 28, 1997 | 29 | 19 |
| 7 | HWI YOUNG | May 11, 1999 | 27 | 17 |
| 8 | CHA NI | January 17, 2000 | 26 | 16 |
Ages here are international ages (counted from the date of birth), the system South Korea has also used officially since June 2023, not “Korean age”.
SF9 Members’ Zodiac Signs
- ♉ Taurus: HWI YOUNG
- ♋ Cancer: IN SEONG, ZU HO
- ♌ Leo: JAE YOON, DA WON
- ♐ Sagittarius: YOUNG BIN
- ♑ Capricorn: CHA NI
- ♓ Pisces: YOO TAE YANG
Only members with a known birthday are included. Sign boundaries: zodiac index
This page lists all 8 members on SF9’s official roster. 8 of them have their own page on this site (our inclusion rule: someone has held a support event for them, or a verifiable identity or birthday source exists). The rest are marked “roster only” and appear only in this table. Birthdays are listed only when we find a verifiable source; otherwise they’re marked “no verifiable source found.” We never fill gaps with guesses. Spotted an error, or have a verifiable official source? Email service@joelin.cc. (email us a report)
We’ve also logged 1 support cases for the group as a whole (debut anniversary).
Fan Events
Events posted by fans show up here as soon as they’re published. Whether an event is also featured on the home page is a separate pick by Joe and has nothing to do with this list.
Want to hold a support event for SF9?
Group support usually centers on debut anniversaries and concerts. Each member’s birthday is in the table above.
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Planning a support project for SF9? Sign in with your joelin.cc account to claim it. There’s no approval email to wait for; your details appear below once we’ve checked them. We never collect contact details, only public social links so other fans can find you. Notes that contain contact details are rejected automatically. Names and addresses can’t always be caught automatically; we accept that remaining risk and check by hand before anything is shown.
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FAQ
- What are the birthdays of SF9's members?
- SF9’s official roster has 8 members. Those with a verifiable birthday on this site: YOUNG BIN November 23, IN SEONG July 12, JAE YOON August 9, DA WON July 24, ZU HO July 4, YOO TAE YANG February 28, HWI YOUNG May 11, CHA NI January 17. Each birthday’s source is cited on this page and on the person’s own page.
- How many SF9 members are listed on this site?
- SF9: Official roster: 8. Of these, 8 have a verifiable birthday recorded on this site. This page lists all 8 members on SF9’s official roster. 8 of them have their own page on this site (our inclusion rule: someone has held a support event for them, or a verifiable identity or birthday source exists). The rest are marked “roster only” and appear only in this table. Birthdays are listed only when we find a verifiable source; otherwise they’re marked “no verifiable source found.” We never fill gaps with guesses. Spotted an error, or have a verifiable official source? Email service@joelin.cc.
- When was SF9’s debut?
- SF9's debut date is October 5, 2016, so every year on October 5 marks the debut anniversary. In other words, SF9’s debut year is 2016. The debut anniversary is one of the most common occasions for group fan support.
- What is SF9's fandom name?
- SF9's official fandom name is FANTASY (판타지). We only list details backed by an official source; anything we can’t verify is left out. Sources are cited at the bottom of this page.
- What is the age order of SF9's members? Who is the oldest?
- We have birth years for 8 of 8 SF9 members (members with only a birth month and day can’t be ranked by age). Ordered from oldest to youngest: IN SEONG (born July 12, 1993), YOUNG BIN (born November 23, 1993), JAE YOON (born August 9, 1994), DA WON (born July 24, 1995), ZU HO (born July 4, 1996), YOO TAE YANG (born February 28, 1997), HWI YOUNG (born May 11, 1999), CHA NI (born January 17, 2000). The oldest is IN SEONG, and the youngest is CHA NI.
- What are the zodiac signs of SF9’s members?
- Based on their birthdays: Taurus: HWI YOUNG; Cancer: IN SEONG, ZU HO; Leo: JAE YOON, DA WON; Sagittarius: YOUNG BIN; Capricorn: CHA NI; Pisces: YOO TAE YANG. Signs use the month and day only, with the boundary dates explained on our zodiac pages.