Does keyword density matter anymore?

No, keyword density in the strict, calculated percentage sense doesn't really matter anymore for modern SEO, and search engines have moved well beyond simply counting how many times a keyword appears on a page. Google's algorithms today use advanced natural language processing and semantic analysis to understand the actual meaning, context, and relevance of content, rather than mechanically measuring keyword ratios, which means artificially hitting a specific density percentage provides no ranking benefit and can actually hurt your content if it results in awkward, repetitive, or unnatural-sounding writing that search engines and readers both recognize as low quality. What genuinely matters now is writing thorough, naturally flowing content that thoroughly covers a topic, incorporating your primary keyword along with related terms and synonyms in a way that reads naturally to a human, since Google's systems are sophisticated enough to understand topical relevance without needing exact keyword repetition. This shift has been driven by algorithm updates specifically designed to reward genuinely helpful content and penalize keyword stuffing tactics that were common in earlier, less advanced eras of search. So rather than worrying about hitting a specific keyword density target, focus your energy on answering the searcher's actual question thoroughly and clearly.