There is no precise, universally agreed-upon percentage for how much “fake news” or misinformation makes up “items” (news articles, social media posts, online content) over the last two years (roughly 2024–2025/early 2026). The question is inherently difficult to answer definitively due to varying definitions of “fake news” (deliberate falsehoods vs. misleading claims, satire, errors, etc.), the massive scale of online content, and subjective judgments.
Key Insights from Available Data
- It’s a small but outsized portion of content: Misinformation represents a minority of overall online or news content, but it spreads faster (often 6x faster than true info in older studies) and gets disproportionate engagement. A 2024 study found that just 0.25% of X (Twitter) users produced 73–78% of low-credibility or misinformation tweets.
- High exposure rates: Many people encounter it frequently.
- ~72% of Australian adults using digital platforms in early 2025 reported encountering misinformation.
- In Canada, ~73% saw suspected false/inaccurate content online in a given year (earlier data, trend continued).
- Globally, over half of people (58%) worry about distinguishing real vs. fake news online.
- No dominant share in total content: Reliable mainstream sources still account for the vast majority of news consumption/engagement, even as fake/pink slime sites proliferate (e.g., fake local news sites now outnumber real U.S. local newspapers per NewsGuard). AI-generated farms are growing but still a niche (less than 1% of fact-checked 2024 election misinformation was AI-generated).
Why It’s Hard to Quantify
- Total “items” are enormous: Billions of social posts, articles, videos daily. Fact-checkers only review a tiny fraction.
- Definitions vary: Fact-checkers focus on viral claims, not random content. Much “misinformation” is misleading framing or unverified rumors rather than pure fabrication.
- Trends: Concerns remain high (top global risk per WEF), amplified by elections, AI tools, and social algorithms, but actual volume as a % of everything online is low-single-digits at most in most analyses.
In short, fake news/misinformation is likely under 5–10% of total online/news content but punches above its weight in visibility and impact, especially on social media. For specific domains like elections or health topics, the share of false claims can be much higher. Reliable sources and fact-checking (e.g., via NewsGuard ratings, PolitiFact) are the best defenses.

