I came across this interesting chart from Michael Brito this morning that shows the demographic breakdown of Twitter users by age.
Interestingly the fastest growing segment on Twitter (other than bots) is among people 24 and younger accelerated faster than older folks in 2009, according to comScore.
Unlike most social networks, Twitter started out being more popular with adults, before it caught on with younger users. Last year that changed as celebrity tweets caught on, and mainstream media started talking about the service more.
At the end of 2009, more than 30% of Twitter’s visitors were under 25, this chart suggests, up from about 20% of its visitors at the end of 2008.
As you can see from the chart above, more than 30% of Twitter’s visitors were under 25 up from about 20% of its visitors at the end of 2008; thank you in part to celebrity adoption and the mainstream media mentioning Twitter over

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First I resent the over 24 crowd being labelled as old! That being said it is not surprising that the younger crowd is getting more involved with Twitter given it’s massive publiticty through celebrities and the various other social networking sites.
These numbers are really not all that surprising given the push Twitter has been receiving from both celebrities and the other social networking sites.
Thanks for the mention Dave!! I hope all is well with you.
Life is good thanx Michael