Why the Medicaid Coverage Gap Still Falls Unevenly on People of Color in 2026

In 2026, the Medicaid coverage gap is still a real problem in the United States, and it is still not affecting everyone equally. In plain terms, the gap describes a group of adults in non-expansion states who earn too much to qualify for their state’s very limited Medicaid rules but too little to qualify for financial help on the ACA marketplace. HealthCare.gov still explains this as a coverage gap, not just a paperwork issue. For the people stuck in it, that usually means going without insurance.

Not every uninsured person in a non-expansion state is in the coverage gap. Some adults are above the poverty line and may qualify for marketplace subsidies, while others may qualify for Medicaid under different categories but are not enrolled. But the gap itself remains large and important. KFF‘s current Medicaid expansion tracker shows that 41 states, including Washington, D.C., have adopted the Affordable Care Act Medicaid expansion, while 10 states have not. KFF’s latest published estimate, based on 2023 survey data, says about 1.4 million uninsured people remain in the gap. The problem is heavily concentrated in the remaining non-expansion states, and most of the people affected live in the South.

Why this is a health equity issue

This is not only a technical insurance rule. It is also a racial and ethnic equity issue. KFF estimates that six in 10 people in the coverage gap are people of color, a higher share than among adults in non-expansion states overall and a higher share than nationwide. Medicaid also plays a larger coverage role for many Black and Hispanic families, so when states keep tighter eligibility rules in place, the harm is not spread evenly.

The geography matters too. KFF reports that nearly three-quarters of adults in the coverage gap live in just three states: Texas, Florida, and Georgia. Overall, 97% live in the South. That helps explain why the gap overlaps so often with long-running regional disparities in chronic disease, maternal health, cancer outcomes, and access to primary care.

What the gap looks like in daily life

For readers and families, the coverage gap often shows up in ordinary decisions that get harder and riskier over time. A person may put off a primary care visit because the bill would come out of rent money. Someone with high blood pressure or asthma may stretch medicines, skip refills, or rely on urgent care only when symptoms get worse. A parent may delay their own care while trying to keep a child insured. Caregivers may end up juggling transportation, missed work, and unpaid medical bills on top of illness itself.

KFF notes that uninsured adults are much more likely to skip needed treatment because of cost, and that being uninsured raises the risk of medical debt. In the coverage gap, many adults are working or live in working families, often in low-wage jobs that do not offer affordable insurance. KFF also estimates that about one in six people in the gap has a functional disability, which can make both employment and care access harder.

The effects can reach beyond one doctor visit. People without reliable coverage are less likely to get preventive services, more likely to delay follow-up after an abnormal finding, and more likely to enter treatment later in the course of illness. That matters for cancer screening, diabetes care, mental health treatment, prenatal and postpartum care, and routine management of heart and lung disease.

What newer studies suggest about access and outcomes

Recent research adds to the case that expansion is linked with better access and, in some settings, better outcomes. The most important point is that the evidence is strongest for association, not absolute proof of cause and effect.

A January 2026 study in JAMA Network Open looked at nearly 1.6 million women ages 40 to 64 with breast cancer who were diagnosed between 2006 and 2021. This was a retrospective observational cohort study using National Cancer Database records, not a randomized trial. The researchers found that living in a Medicaid expansion state was associated with lower overall mortality than living in a non-expansion state. But the gains were uneven. The study also found that racial, ethnic, and socioeconomic disparities persisted even where expansion was associated with improvement.

That nuance matters. Expansion may improve the odds that a person gets insured, gets diagnosed sooner, or gets treated more consistently, but insurance alone does not erase differences in where people receive care, how quickly they are referred, whether they can take time off work, or whether they face transportation, language, or bias-related barriers inside the health system.

Another recent study, published in Rural Health and indexed in PubMed in 2024, found that the mortality effects of expansion were uneven across racial and ethnic groups and between rural and urban communities. In other words, even when expansion helps overall, it may not help every group to the same degree. Rural communities in particular may still face shortages of clinicians, hospitals, specialists, and transportation that limit the real-world benefit of having an insurance card.

An April 2026 disparities report from the American Cancer Society Cancer Action Network, an advocacy organization rather than a peer-reviewed journal, echoed the same broad concern: insurance barriers still shape who gets screened, treated, and followed over time. That does not replace the journal evidence, but it does show how closely coverage policy and health equity remain linked in everyday care.

What the studies cannot tell us

It is important not to overstate the research. Most of the studies on Medicaid expansion and health outcomes are observational. They compare what happened in expansion states with what happened in non-expansion states over time. That is useful, especially when randomized trials are not realistic for state policy, but it cannot prove that expansion alone caused every improvement. States differ in many other ways, including hospital resources, local public health funding, transportation access, and baseline health status.

The January 2026 breast cancer study has other limits too. It focused on women ages 40 to 64 who were treated in hospitals included in the National Cancer Database, so it does not answer every question for every patient group. And even within that study, benefits were not equally distributed across income levels and racial and ethnic groups. That is exactly why the coverage gap should be viewed as one piece of a larger equity problem, not the whole story.

What this means for readers

The practical takeaway is straightforward. The Medicaid coverage gap still exists in 2026 because some states still have not adopted full Medicaid expansion. The burden is not evenly shared, and communities of color continue to be overrepresented among the adults left out. For families, that can mean delayed care, worse disease management, more medical debt, and more strain on caregivers.

The evidence increasingly suggests that Medicaid expansion is associated with better access and some improved outcomes, including lower mortality in certain settings such as breast cancer. But expansion does not guarantee the same benefit for every community, and it does not by itself erase racial, ethnic, or rural disparities.

The broader affordability picture has not gotten easier this year. AP reported in January that enhanced ACA marketplace subsidies expired at the start of 2026, raising costs for many people who buy their own coverage. That change does not define the Medicaid coverage gap, but it does underline how fragile insurance access can be for low-income households just above or near the line.

If you live in a non-expansion state and think you may have no affordable option, it is still worth applying. HealthCare.gov says some people may qualify for Medicaid under other rules, especially if they are pregnant, disabled, or have children, and income changes can also affect marketplace help. If coverage is still out of reach, community health centers, hospital financial assistance programs, and local enrollment navigators may help you find the least costly path to care while the larger policy gap remains unresolved.

Sources

This article is for general informational purposes only and is not medical advice. Research findings can be early, limited, or subject to change as new evidence emerges. For personal guidance, diagnosis, or treatment, consult a licensed clinician. For current outbreak or public health guidance, follow your local health department, the CDC, or another relevant public health authority.