The number of fans was estimated based on the following calculation: fan population by age group multiplied by the population by age group. The latter was taken from the Basic Residents Register provided by the Ministry of Internal Affairs and Communications of Japan.
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Number of fans of leading professional baseball (NPB) teams in Japan 2025
As of September 2025, the **** had an estimated fan base of **** million individuals. This made the team the most supported Nippon Professional Baseball team in Japan. Meanwhile, the **** ranked second with around *** million fans.
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Macromill. (October 9, 2025). Number of fans supporting leading professional baseball (NPB) teams in Japan as of September 2025, by team (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 21, 2026, from /statistics/793501/japan-professional-baseball-fan-numbers-by-team/
Macromill. "Number of fans supporting leading professional baseball (NPB) teams in Japan as of September 2025, by team (in millions)." Chart. October 9, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 21, 2026. /statistics/793501/japan-professional-baseball-fan-numbers-by-team/
Macromill. (2025). Number of fans supporting leading professional baseball (NPB) teams in Japan as of September 2025, by team (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 21, 2026. /statistics/793501/japan-professional-baseball-fan-numbers-by-team/
Macromill. "Number of Fans Supporting Leading Professional Baseball (Npb) Teams in Japan as of September 2025, by Team (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 9 Oct 2025, /statistics/793501/japan-professional-baseball-fan-numbers-by-team/
Macromill, Number of fans supporting leading professional baseball (NPB) teams in Japan as of September 2025, by team (in millions) ÌÇÐÄÆƽâ°æ, /statistics/793501/japan-professional-baseball-fan-numbers-by-team/ (last visited July 21, 2026)
Number of fans supporting leading professional baseball (NPB) teams in Japan as of September 2025, by team (in millions) [Graph], Macromill, October 9, 2025. [Online]. Available: /statistics/793501/japan-professional-baseball-fan-numbers-by-team/
