A community assessment is a systematic process of gathering and analyzing data to understand a community's strengths, needs, challenges, and resources. It has several benefits, such as identifying community needs, facilitating effective planning and resource allocation, fostering collaboration among stakeholders, promoting evidence-based decision making, empowering communities, and advocating for positive change. The community assessment process involves three phases - pre-assessment, assessment, and post-assessment. Key factors that contribute to a community's health needs include socioeconomic factors, environmental factors, demographic factors, healthcare access, health behaviors, and social determinants of health.