Healthcare Deserts: Where America Can't See a Doctor

If you get sick in Boston, you have a choice of specialists within walking distance. If you get sick in rural Mississippi, you might drive two hours to see a primary care doctor. This post visualizes HRSA shortage area data to map where the healthcare deserts are, how severe they are, and where safety-net clinics try to fill the gaps.

Roughly 100 million Americans live in a federally designated health professional shortage area — a place with too few primary care doctors, dentists, or mental health providers to meet basic need. This post visualizes that shortage using live HRSA data: where the deserts are, how severe they are, who goes without, and where the safety-net clinics try to fill the gaps.

If you get sick in Boston, you have a choice of specialists within walking distance. If you get sick in rural Mississippi, you might drive two hours to see a primary care doctor — if you can get an appointment at all.

This isn't a market failure in the usual sense. It's a structural one. Rural areas, low-income urban neighborhoods, and tribal lands have too few health care providers relative to population because those providers can earn more money elsewhere. The federal government has been tracking this gap since the 1970s through a designation called a Health Professional Shortage Area (HPSA).

As of 2025, roughly 6,500 primary care HPSAs, 7,000 dental HPSAs, and 6,000 mental health HPSAs are active across the United States. Together they affect an estimated 100 million people. Every chart on this page draws from the HRSA HPSA dataset, updated daily.

This map shows the count of active HPSA designations per state. Use the buttons below the map to toggle between care types. Note that one state can contain many distinct shortage areas — a rural county, a low-income urban population, and a correctional facility are each counted separately.

A few patterns are immediately visible. Texas and California lead in raw counts partly because of their size and population — but also because each contains enormous internal variation. Rural West Texas is a different universe from Houston. Watts in Los Angeles is medically underserved while Beverly Hills is not.

Proportion matters more than raw count, but the absolute numbers reveal how many distinct shortage designations coexist within a single state — each representing a community that officially does not have enough providers.

Primary care shortages are the most common and, in some ways, the most consequential. Without a primary care provider, patients delay preventive care, miss chronic disease management, and end up in emergency departments for conditions that should never require one. Diabetes goes uncontrolled. Hypertension goes undiagnosed. Cancers are caught late.

The shortage in primary care is structural: medical schools produce roughly the same number of physicians each year, but the economics of specialty medicine make primary care increasingly unattractive as a career. A cardiologist in a major city earns two to three times what a family practice doctor earns in rural Appalachia — and the rural doctor also faces professional isolation, limited resources, and a patient population with higher disease burden.

Dental care is often treated as a luxury — something separate from "real" medicine and therefore outside the scope of public concern. That framing has consequences. Oral disease is the most common chronic condition in childhood. Untreated tooth decay leads to infections that can become life-threatening. Adults with untreated dental disease lose work days, job opportunities, and eventually teeth, which affects nutrition and overall health.

Dental shortages are heavily rural and heavily correlated with income. Most private dentists set up practices in areas with higher incomes and better insurance coverage. Medicaid covers dental care for children but often not adults, and Medicaid reimbursement rates are so low that many dentists don't accept it even where coverage nominally exists.

Of the three categories, mental health has the most severe and most geographically concentrated shortage. The U.S. has a nationwide deficit of approximately 6,000 psychiatrists, and the shortage is worst in precisely the places where mental illness rates are highest: rural communities with economic distress, high rates of substance use, and social isolation.

In some states, entire counties have no licensed psychiatrist at all. Telehealth has partially filled this gap — the COVID-19 pandemic forced a rapid expansion of remote mental health services — but access to reliable broadband remains a barrier in the same rural areas with the worst provider shortages.

The shortage score distribution below shows how the mental health shortage differs from primary care and dental: a higher proportion of mental health HPSAs have scores in the severe range (15–25), indicating that where mental health shortages exist, they tend to be extreme.

The concentration of high scores in mental health reflects several reinforcing factors: the shortage started earlier, grew faster, and involves a workforce that takes longer to train (psychiatrists complete four years of residency after medical school). Psychologists, licensed clinical social workers, and counselors help fill the gap, but HRSA's ratio thresholds for designation still reflect a very real scarcity.

The main federal response to shortage designations is the Federally Qualified Health Center program. FQHCs are community health clinics that receive federal grants and enhanced Medicaid reimbursement in exchange for serving all patients regardless of ability to pay. They charge on a sliding fee scale — $0 for the very poorest patients.

Nearly 18,000 active FQHC sites operate across the country, serving roughly 30 million patients annually. They are concentrated in shortage areas by design — HRSA gives priority for FQHC grants to areas with active HPSA designations.

But look at where the gaps in the FQHC map are: large stretches of the rural Mountain West, the Plains states, and the rural South have almost no FQHC coverage. These are places where the shortage exists but the safety net was never built. In some counties, there is simply no federally supported primary care option at all.

All data in this post comes from HRSA's public data warehouse, available at data.hrsa.gov:

• HPSA designations — Three separate CSV files, one each for Primary Care, Dental Health, and Mental Health (BCD_HPSA_FCT_DET_PC/DH/MH.csv). Updated daily. Filtered to HPSA Status = "Designated"= (excludes withdrawn, proposed-for-withdrawal).
• FQHC sites — Health_Center_Service_Delivery_and_LookAlike_Sites.csv. Filtered to Site Status = "Active"= and Health Center Type = "Federally Qualified Health Center (FQHC)"=.

The shortage score (0–25) is HRSA's composite metric. Primary care scores incorporate the population-to-provider ratio, infant mortality rate, percent of population below poverty, and travel distance to the nearest provider outside the area. Dental and mental health scores use analogous domain-specific formulas.

"Estimated underserved population" is HRSA's estimate of how many people in the shortage area lack adequate access — not simply the total population in the area.

Designations at the facility level (prisons, FQHCs, tribal health facilities) are included in counts but often represent smaller populations. Geographic and population-based HPSAs account for the vast majority of underserved population totals.