The Default Identity: For most of China, being 汉族 is the default identity. It is the cultural mainstream, in contrast to the 55 other officially recognized ethnic minorities (少数民族, shǎoshù mínzú). This identity is officially recorded on every citizen's national ID card.
Comparison to Western Concepts: The concept of 汉族 is often compared to “White” or “Caucasian” in the West, but the comparison is imperfect. While “White” is a broad racial category spanning many nationalities and cultures (e.g., American, French, Russian), 汉族 is a more specific ethno-cultural identity with a deeply rooted and relatively continuous historical narrative centered in one geographic region. The term implies a shared written language, history, and set of philosophies (like Confucianism) that is far more unified than the broad “White” category. It's less about race in the Western sense and more about shared civilization.
Unity in Diversity: It is crucial to remember that the 汉族 is not monolithic. A Han person from Beijing in the north and a Han person from Guangzhou in the south may speak mutually unintelligible dialects (like Mandarin and Cantonese), have vastly different cuisines, and practice different local customs. However, they are united by a common written script (汉字) and a shared sense of historical and cultural identity as 汉族.