Background Community health programs (CHPs) are integral components of primary health care (PHC) systems and support the delivery of primary care and allied health and nursing care services. CHPs are necessary platforms for delivering health services toward universal health coverage (UHC). There are limited prior studies on comprehensive evidence synthesis on how CHPs strengthen community health systems for the demand and supply of PHC services. Therefore, this scoping review synthesized existing evidence on the interlinkage between CHPs and the community health system and beyond for delivering and utilising PHC services toward UHC.

Methods We conducted a scoping review of research articles on CHPs. We identified research articles in six databases (PubMed/Medline, CINAHL, Scopus, Cochrane, Web of Science, and Embase) and Google Scholar using search terms under three concepts: CHPs, PHC, and UHC. Of the 3836 records identified, 1407 duplicates were removed, and 2346 were removed based on titles and abstracts. A total of 83 articles were eligible for the full-text review; of them, 18 articles were removed with reasons, and the other 16 were included through hand search. Themes were identified and explained using Sacks and colleagues’ “Beyond the Building Block” framework.

Results A total of 81 studies were included in the final review. Studies described CHPs as foundations for community health system readiness for PHC services, including decentralization in the health sector, community-controlled governance, resource mobilization, ensuring health commodities (e.g., through community pharmacies), and information evidence. These foundational inputs mediate the actions of CHPs by partnership with community organizations and health workforces (e.g., community health workers). CHPs contributed to improved access to health services by providing health services in public health emergencies, affordable and comprehensive care, and modifying social determinants of health.

Conclusions CHPs are platforms for implementing and delivering PHC services close to communities. They help to modify social determinants of health, promote health and wellbeing, reduce care costs, prevent disease progression, and reduce hospitalisation rates. CHPs are integral parts of community health systems and require investment to improve access to PHC services. Gaps and challenges of CHPs include inadequate funding, limited engagement of the private sector, poor quality of health services, and limited focus on non-communicable diseases (NCDs). Further implementation research is needed to mitigate the burden of NCDs. Health systems efforts focus on increasing resources (e.g., financial and human) required in CHPs to ensure the quality of PHC services provided through CHPs toward better service access, and reaching the unreached and achieve equity and universality of PHC services.