Organic reach is the number of unique people who see a piece of content through unpaid distribution - followers seeing it in their feed, discovery through hashtags, or the algorithm serving it to non-followers. It’s the baseline of what a post achieves on its own, without any budget behind it.
Organic reach has declined significantly on most major platforms over the past decade as feeds have become more competitive and platforms have prioritised paid content. Building strong organic reach now depends heavily on consistent posting, high engagement signals, and content that the algorithm identifies as worth promoting.