See also Digimon Adventure/Appendices/Ages and grades.
Episode 01
Japanese
Takeru: "I'm Takeru Takaishi, 5th grade."
Miyako: "I'm Miyako Inoue, 6th grade."
Iori: "I'm Iori Hida, 3rd grade."
Takeru: "Taichi-san is in middle school, of course."
- Daisuke Motomiya: Odaiba Elementary School, class 5-A
- Miyako Inoue: Odaiba Elementary School
- Iori Hida: Odaiba Elementary School
- Takeru Takaishi: Odaiba Elementary School, class 5-A
- Hikari Yagami: Odaiba Elementary School, class 5-A
English
T.K.: "Tai is in high school."
T.K.: "Izzy is in high school."
T.K.: "I'm in 7th grade class A."
Yolei: "Tai Kamiya. Hey, there's a girl in seventh grade with the same last name."
Brazilian Portuguee
T.K.: "I'm Takeru Takaishi, T.K.. I'm in 5th grade."
Yolei: "I'm in 6th grade. My name is Yolei."
Cody: "I'm Cody from 3rd grade."
T.K.: "It couldn't be Tai, he's now a middle school student."
Episode 33
Japanese
- Miyako: Class 6-A
- Micchan: Odaiba Elementary School, class 6-A
- Tāko: Odaiba Elementary School, class 6-A
Episode 45
Japanese
Anchorman: "Takashi Yoshizawa-kun, age 7. Noriko Kawada-chan, age 10. Hiroshi Shibata-kun, age 11."
Digimon Adventure 02: Diablomon's Counterattack
Miyako tries Odaiba Middle School's uniform.
Digimon Adventure V-Tamer 01, "Double Tamer!! The Great Super-dimensional Battle!!"
- Daisuke: "I'm Daisuke Motomiya, 11 years old, born in 1991."
Unknown publication
Digimon Adventure: Official Encyclopedia II
- Adventure 02 preview
- Taichi Yagami: "(Currently a 2nd grader in middle school)"
- Sora Takenouchi: "(Currently a 2nd grader in middle school)"
- Yamato ishida: "(Currently a 2nd grader in middle school)"
- Koshiro Izumi: "(Currently a 1st grader in middle school)"
- Mimi Tachikawa: "(Currently a 1st grader in middle school)"
- Jo Kido: "(Currently a 3rd grader in middle school)"
Digimon Adventure 02: Official Encyclopedia III
- Daisuke Motomiya: "A 5th grader in Odaiba Elementary School's soccer team [...]"
- Miyako Inoue: "A girl in Odaiba Elementary School's 6th grade who loves computers."
- Iori Hida: "A boy in Odaiba Elementary School's 3rd grade."
- Takeru Takaishi: "A boy who has transferred to Daisuke's class."
- Hikari Yagami: "Taichi Yagami's younger sistes and Daisuke's classmate."
- Taichi Yagami: "Now a 2nd grader in middle school [...]"
- Yamato Ishida: "A 2nd grader in middle school [...]"
- Sora Takenouchi: "A 2nd grader in middle school [...]"
- Mimi Tachikawa: "A 1st grader in middle who, after the previous adventure, went to study abroad in America."
- Kōshirō Izumi: "A 1st grader in middle school whose speciality is computers."
- Jo Kido: "A 3rd grader who attends a different middle school from Taichi and the others."
- Michael: "Grade: Middle school, 1st grade"
- Wallace: "Grade: Elementary school, 1st grade"
Digimon Adventure 02: Official Encyclopedia IV
- Daisuke Motomiya: "A 5th grader in Odaiba Elementary School [...]"
- Ken Ichijoji: "A 5th grader in elementary school who attends a different school from Daisuke and the others."
- Miyako Inoue: "A 6th grader who attends Odaiba Elementary School."
- Hikari Yagami: "Daisuke's classmate [...]"
- Iori Hida: "A 3rd grader who attends Odaiba Elementary School."
- Takeru Takaishi: "Daisuke and the others' classmate [...]"
- Sora Takenouchi: "After entering middle school."
Digimon Series Memorial Book: Digimon Animation Chronicle
- Daisuke Motomiya: "A 5th grader in Odaiba Elementary School. Age 11."
- Daisuke (7 years old): "Daisuke 3 years ago. In August 1999, he and his family were captured by Vamdemon and taken to Big Sight."
- Jun Motomiya: "Daisuke's older sister, who is a 2nd grader in high school. Apart by 6 years in age [...]"
- Miyako Inoue: "A 6th grader, making her the oldest among the new kids. Age 12. [...] Because she moved to Odaiba in 5th grade, the Digimon fight in the Internet that occurred in the spring of 2000 is her first encounter with Digimon."
- [Miyako's] Mother: "She is 3 years older than her husband."
- Mantarou Inoue: "Freshman in university."
- Momoe Inoue: "A classmate of Jun."
- Chizuru: "A 2nd grader in Odaiba Middle School, and in the same class as Yamato."
- Iori Hida: "A 3rd grader in Odaiba Elementary School. Age 9."
- Iori (5 years old): "Iori on August 1999, when he was coming back from London with his father's remains."
- Takeru Takaishi: "His elementary school is the same as Daisuke and the others, Odaiba Elementary School, Class 5-A."
- Hikari Yagami: "Age 11. [...] In elementary school, she is in the same Class 5-A as Daisuke and the others".
- Ken Ichijoji: "Although a 5th grader in elementary school and 11 years old [...]"
- Ken [2 years ago]: "Below is Ken at age 9."
- Ken [Bubbles flashback design]: "Ken at age 4."
- Osamu Ichijoji: "Ken once had an older brother Osamu, who was three years older than him."
- Osamu [2 years ago]: "At right is Osamu at age 11."
- Osamu [Bubbles flashback design]: "Osamu at age 7."
- Ryo Akiyama: "A veteran Tamer who journeyed the Digital World with 9 years old Ken in August 2000."
- Taichi Yagami: "Taichi who progressed to Odaiba Middle School. Age 14, 2nd grader in middle school."
- Yamato Ishida: "A 2nd grader in odaiba Middle School. Age 14."
- Sora Takenouchi: "A 2nd grader in Odaiba Middle School. Age 14."
- Kōshirō Izumi: "A 1st grader in Odaiba Middle School. Age 13."
- Mimi Tachikawa: "A 1st grader in middle school. Age 13."
- Jo Kido: "A 3rd grader in middle school. Age 13."
- Yukio Oikawa and Hiroki Hida
- Around age 25: "Oikawa and Iori's father, Hiroki Hida, around age 24~5."
- 1st grade in middle school: "Oikawa and Hiroki in their middle school years.
Digimon Adventure 02: Digimon Hurricane Landing!!/Transcendent Evolution!! The Golden Digimentals
- Daisuke Motomiya (Age 4)
- Wallace: --Translate--
- Wallace (Age 4): "Wallace 7 years ago [...]"
- Takeru Takaishi (Age 4)
- Hikari Yagami (Age 4)
- Miyako Inoue (Age 4)
- Iori Hida (Age 4)
- Chosen children of 1999
- Progress: --Translate blurb--
- Taichi: Age 7
- Yamato: Age 7
- Sora: Age 7
- Kōshirō: Age 6
- Mimi: Age 6
- Jo: Age 8
- Age 4
Digimon Adventure 02: Diablomon's Counterattack
- Daisuke Motomiya: "Daisuke about to enter the new school year as a 6th grader."
- Miyako Inoue: --Blurb about middle school uniform--
Digimon: Digital Monsters - The Official Second Season
- Davis Motomiya: 7th grade
- Ken Ichijouji: 7th grade
- T.K. Takaishi: 7th grade
- Cody Hida: 4th grade
- Kari Kamiya: 7th grade
- Yolei Inoue: 7th grade
- Tai: 9th
- Matt: 9th
- Sora: 9th
- Izzy: 8th
- Mimi: 8th
- Joe: 10th grade