Public health nursing is nursing whose patient is a population rather than an individual. The nurse still sees people one at a time, but the goal is the health of a community, and success is measured in rates.
It is among the oldest organized forms of American nursing. Lillian Wald founded the Henry Street Settlement in New York in 1893, coined the term public health nurse, and built a model in which nurses visited immigrant families in their homes, treated what they found, and then argued for the housing, sanitation, and labour laws that would prevent it. That combination — care plus advocacy — is still what distinguishes the specialty. See history of nursing.
Two of the field's other founding figures show how far the advocacy half can travel. Mary Breckinridge built a district nursing system across a thousand square miles of eastern Kentucky from 1925 and took the worst maternal death rate in the country to well below the national average. Margaret Sanger started as a visiting nurse in the same tenements as Wald, concluded that the deaths she was attending were legally preventable and not medically preventable, and spent the rest of her life on that — a career that also carries a documented and unflattering record on eugenics.
What public health nurses do
Communicable disease control. Case investigation, contact tracing, tuberculosis directly observed therapy, sexually transmitted infection follow-up, and outbreak response.
Immunization. Clinics, school compliance, registries, and the persuasion work that determines coverage.
Maternal and child health. Home visiting programmes for new parents, particularly first-time and high-risk families, which have some of the strongest evidence of any preventive intervention in the country. See obstetric nursing.
Chronic disease prevention — tobacco cessation, nutrition, physical activity, blood pressure and diabetes screening in community settings.
Emergency preparedness and response, including mass vaccination and dispensing, shelter operations, and the whole machinery that gets stood up in a disaster or epidemic.
Correctional, school, refugee, and migrant health, and outreach to people experiencing homelessness — populations that fall through every other part of the system. See correctional nursing and school nursing.
Policy and assessment. Community health assessment, surveillance data, programme evaluation, and testifying about what the data mean.
The upstream argument
The specialty's distinctive habit of mind is to ask why the same problem keeps arriving. A nurse treating the third asthma exacerbation from one address starts asking about the mould in the building. A nurse seeing repeated lead exposures asks about the housing stock. The clinical encounter is the detection system; the intervention may be an inspection, an ordinance, or a landlord.
This is why the field is closely tied to the social determinants of health — housing, income, food, transport, and racism — and why public health nurses spend so much time in work that does not look like nursing at all.
It is also why the specialty produces people who end up in legislatures. Eddie Bernice Johnson, the first nurse elected to Congress, said plainly that what moved her into politics was seeing how much of what her patients needed was decided somewhere other than a hospital.
Where the jobs are
Local and state health departments, federally qualified health centres, community and migrant health programmes, tribal health services, correctional systems, non-profit and faith-based organizations, and federal agencies. Indian Health Service and tribal health programmes are a substantial employer with their own structure. See Indian Health Service and tribal nursing and rural and frontier nursing.
Pay is generally below hospital pay, and government positions bring pensions, loan repayment eligibility, and predictable weekday hours in exchange.
Certification
The certification landscape here has thinned, and it is worth knowing before planning a credential.
The advanced public health nursing certification from the American Nurses Credentialing Center is retired and available for renewal only, as are the community health nursing certification and the public and community health clinical nurse specialist certification. Nurses entering the field now cannot obtain those credentials.
What remains available is the multidisciplinary public health certification open to graduates of accredited public health programmes, held by professionals across the field rather than nurses specifically. Many public health nurses hold a master's degree in public health instead of, or alongside, a nursing credential.
The retirement of the nursing-specific credentials is a real loss of professional definition for a field that has always struggled to explain itself. See nursing specialties.
The funding problem
Public health in the United States is funded in bursts. Money arrives after a crisis, builds capacity, and then expires, and the workforce is cut back to a baseline that everyone acknowledges is too small. That cycle repeated after the pandemic emergency funding ended, and it is the structural reason the field cannot retain the people it trains.
Related
- School nursing
- Correctional nursing
- Infection prevention nursing
- Indian Health Service and tribal nursing
- Nursing specialties
- Lillian Wald
Sources
- Advanced Public Health Nursing Certification — American Nurses Credentialing Center, showing the credential is retired and available for renewal only. Accessed September 9, 2026.
- Community Health Nursing Certification — American Nurses Credentialing Center, renewal only. Accessed September 9, 2026.
- Public/Community Health Clinical Nurse Specialist Certification — American Nurses Credentialing Center, renewal only. Accessed September 9, 2026.
- Certified in Public Health — National Board of Public Health Examiners. Accessed September 9, 2026.