A community health worker is a frontline public health professional who comes from, or has deep ties to, the community they serve. That shared background creates trust, and that trust is the foundation of everything they do: connecting people to healthcare services, translating complex medical information into practical guidance, and advocating for individuals who might otherwise fall through the cracks of a fragmented health system. The American Public Health Association defines them as a “liaison between health/social services and the community,” but the role is broader than that phrase suggests.
What Community Health Workers Actually Do
The day-to-day work of a community health worker varies enormously depending on the setting, but the CHW Core Consensus (C3) Project has identified ten distinct roles that define the profession. These range from conducting outreach and providing health education to coordinating care, navigating social services, and advocating for policy changes at the community level. A CHW might spend one morning helping a recently diagnosed diabetic understand their medication routine and that afternoon connecting an uninsured family with food assistance programs.
What separates community health workers from other health professionals is their position at the intersection of clinical care and lived experience. They don’t diagnose conditions or write prescriptions. Instead, they fill the gap between what a doctor recommends and what a patient can realistically do given their income, language, transportation, and family situation. They visit people in their homes, meet them at community centers and places of worship, and show up in the spaces where their neighbors already gather.
How CHWs Differ From Social Workers
Community health workers and social workers frequently collaborate, but their training, scope, and approach are different. Social workers hold professional licenses that allow them to provide clinical mental health services, conduct standardized assessments, and develop formal care plans. CHWs focus on implementing those plans: doing the health education, building the client’s confidence, and connecting them with community resources. In practice, this means a social worker might assess a patient’s mental health needs and design a treatment approach, while the CHW helps that patient follow through by checking in regularly, identifying barriers, and linking them to local support.
This division of labor benefits both professions. Social workers with large caseloads can focus on the clinical work that requires their license, while CHWs handle the relationship-intensive community outreach that demands cultural fluency and local knowledge. Tension can arise when social workers supervise CHWs without understanding their community-based approach, so effective programs build collaboration into their structure rather than creating a strict hierarchy.
Training and Certification
Unlike nurses or social workers, community health workers don’t need a specific degree to enter the field. Training programs are typically competency-based, covering eleven core skills that include communication, relationship building, advocacy, service navigation, and community assessment. The length and structure of these programs vary widely by state.
Certification is growing but still optional in most places. Twelve states currently operate their own certification programs, including Texas, California, Massachusetts, and Ohio. Five additional states have privately run credentialing boards, and six more run certification through CHW associations. In states with formal certification, the requirements go beyond completing a training course. Many require between 1,000 and 4,000 hours of field experience (roughly six months to two years of full-time work), plus continuing education of about 10 to 15 hours per year. Recertification fees are generally modest, typically $25 to $100.
Certification doesn’t function as a license to practice. You can work as a community health worker without it in most states. However, some states require certification for CHWs to bill Medicaid for their services or to use the title “certified community health worker,” which can affect employment opportunities and pay.
Where Community Health Workers Are Employed
Community health workers show up in places you might expect and places you might not. According to the Bureau of Labor Statistics, 21% work in outpatient and ambulatory healthcare settings like clinics and physician offices. Another 20% work in social assistance organizations, 18% in local government public health departments, and 11% in hospitals. About 9% are employed by religious, civic, or professional organizations, reflecting the role’s roots in faith-based and grassroots health promotion.
Travel is a routine part of the job. CHWs visit clients in their homes, accompany them to medical appointments, and work in whatever setting the community needs require. This mobility is part of what makes the role effective: rather than waiting for patients to show up at a clinic, CHWs go to where people live.
Health Outcomes and Cost Savings
The evidence for CHW effectiveness is strongest in chronic disease management. In diabetes care, studies reviewed by the Agency for Healthcare Research and Quality found that CHW interventions significantly reduced blood sugar levels compared to standard care. One study showed an average drop in HbA1c (a key measure of long-term blood sugar control) of 2.2 points in the CHW group versus just 0.2 points with usual care. That’s a clinically meaningful difference that translates to lower risk of complications like nerve damage and kidney disease.
Results for blood pressure management have been less clear-cut. Multiple studies found that all patient groups improved over time, but the CHW group didn’t consistently outperform standard care. This may reflect the fact that blood pressure control depends heavily on medication adherence, which is influenced by factors like cost and side effects that CHWs can support but not directly resolve.
Globally, CHW programs in low-resource settings have driven substantial improvements. A five-year evaluation of one program found that prenatal care visits increased by 34%, births attended by skilled health workers rose 36%, and full childhood vaccination rates improved by 24%. The World Health Organization now publishes formal guidelines for CHW program design, emphasizing competency-based training, supportive supervision, fair pay, and integration into existing health systems rather than operating as standalone projects.
The financial case is compelling. A systematic review of U.S. programs found a median return of $2.12 for every dollar invested, with median annual program costs of about $155,000 generating median annual savings of roughly $403,000. Those savings come primarily from reduced emergency department visits, fewer hospitalizations, and better management of chronic conditions before they become crises.
Funding and Medicaid Reimbursement
Community health worker programs have historically depended on grants, which creates instability. A grant runs out, and a successful program shuts down. That picture is changing. As of early 2024, just over half of state Medicaid programs had implemented some form of coverage and payment for CHW services, and the number continues to grow. This shift toward sustainable reimbursement is significant because it treats CHW services as a standard part of healthcare delivery rather than a temporary project.
The move toward Medicaid reimbursement also explains why state certification matters even where it isn’t legally required. Medicaid programs need a way to verify that the CHWs they’re paying for have met a minimum standard of training and competency. In states that tie reimbursement to certification, becoming certified is essentially a prerequisite for employment in Medicaid-funded settings.
Career Outlook
Demand for community health workers is rising. The profession is growing as healthcare systems increasingly recognize that clinical care alone doesn’t address the social and environmental factors that drive health outcomes. The largest hiring sectors are outpatient clinics, social service agencies, and local health departments, but hospitals, insurers, and managed care organizations are also building CHW positions into their workforce models.
The role goes by many names depending on the community and the specific focus. Promotores de salud serve Spanish-speaking populations. Community health representatives work in tribal health systems. Community health advisors, patient navigators, and peer health educators all describe variations of the same core function: a trusted community member who bridges the gap between people and the systems designed to help them.