This document defines and discusses concepts related to community health and community health nursing. It provides definitions of community from WHO and other sources that emphasize geographical boundaries, common values, social interaction, and shared goals among community members. Components of community are identified as people, common goals, place, and social interaction. Community health is defined as providing primary health facilities to achieve health for all, and referring to the health status and problems of a community as well as the total healthcare provided. Functions of community health nursing include assessing community health needs, formulating public health policies, and ensuring access to care. Key characteristics are that it combines public health and nursing services while focusing on population health, prevention, and collaboration.