Japanese西山宏太朗 Twitter (X) stats, updated continuously. @Koutarotaro has 545,149 followers and 16,493 posts on X. Account age: 14 years (joined April 2012).
Engagement
A typical post picks up 786 interactions against 545K followers, an engagement rate of 0.144%. Measured over 16 original posts, its engagement rate beats 74% of 6,874 tracked accounts of a similar size, which puts it in the middle of its size range rather than at either end. Posts are seen about 175K times each, and 0.449% of those impressions turn into an interaction. That is about 32.1% of the follower count, which is the gap between an audience on paper and an audience in a timeline.
Measured over 16 original posts from a 30-day window, last computed on September 4, 2026. Recurring tags: #西山宏太朗, #ハロラボ, #たろ森.
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Follower growth
Bio
81プロデュース、声優の西山宏太朗 〜かりあげを愛する〜 です！ @koutarotaroInfo ♬
Notable followers
The biggest accounts in our directory following @Koutarotaro.
Similar accounts
西山宏太朗 on Twitter (X) - frequently asked questions
- How many followers does 西山宏太朗 have on X?
- 西山宏太朗 (@Koutarotaro) has 545,149 followers on X (Twitter). The count is refreshed continuously from public data.
- When did 西山宏太朗 join X, and how old is the account?
- 西山宏太朗 joined X in April 2012. The @Koutarotaro account is 14 years old. Searches for 西山宏太朗 age often mean a personal age, which we do not publish. The figure here is the account age only.
- How many posts has 西山宏太朗 published?
- 西山宏太朗 has published 16,493 posts on X. That is about 3.1 posts per day over the life of the account.
- Is 西山宏太朗 verified on X?
- Yes. 西山宏太朗 is verified on X with a blue checkmark (X Premium).