The chart displays the US Social Media Advertising 2020–2025 Total Market Share ($ Billions) by platform, illustrating the highly concentrated nature of the social media ad spending market. Facebook dominates with the largest share at 90 billion USD, accounting for 38% of the total market share across the six platforms. Instagram follows as the second-largest platform, generating 60 billion USD. Twitter and LinkedIn command the next largest shares, with Twitter at 30 billion USD and LinkedIn at 25 billion USD. Snapchat and TikTok have the smallest shares, with Snapchat at 20 billion USD and TikTok at 15 billion USD. The combined market share of Facebook and Instagram is 150 billion USD, which is significantly more than all the other listed platforms combined, underscoring their collective dominance in the US social media ad market.
| Labels | 2020–2025 Total Market Share ($ Billions) |
| 90 | |
| 60 | |
| 30 | |
| 25 | |
| Snapchat | 20 |
| TikTok | 15 |
