Social Media Demographics

Social media strategy fails most often for a reason you can fix in an afternoon: the team is posting where they want to post, not where their buyers are. This infographic is the 2025 snapshot of who is actually active on each major platform — LinkedIn, X, Instagram, TikTok, YouTube, Facebook, Reddit — broken down by age, role, income, and usage intent.

The headline finding for B2B marketers: LinkedIn is still the only platform where professional-buyer intent is primary rather than incidental. Other platforms have professional audiences, but those audiences aren't in work-mode when they're there. That distinction changes how your content has to work. LinkedIn posts can assume the reader is asking "how does this apply to my job?" Instagram reels cannot.

For B2C or prosumer brands, the split is sharper. TikTok and Instagram dominate 18–34. Facebook has aged up hard — its under-25 cohort is smaller every year. YouTube is the one platform that spans every demographic, which is why the returns on YouTube content compound differently than short-form.

Use the demographic data as a forcing function, not a target list. The pattern we see repeatedly: teams try to be everywhere, produce thin content for five platforms, and then complain that social doesn't work. Two platforms done well almost always outperform five done adequately. The right question is "which two match our buyers and our production capacity?" — not "where should we be?"

A second-order point: demographic reach isn't the same as attention. A platform's median user skew tells you who you can reach in theory. What matters for B2B is who is active in a specific professional context — the LinkedIn VP of Marketing who reads three posts before her 9 a.m. meeting is worth more than 50 drive-by impressions on Instagram. Match your content format to the moment of attention, not to the platform's overall audience.

Stratridge's Message Consistency audit catches the common symptom of wrong-platform strategy: the company voice on LinkedIn sounds nothing like the voice on the site, and buyers notice.