As of 2023, there were 47.1 million immigrants residing in the U.S., including 22.4 million noncitizen immigrants and 24.7 million naturalized citizens, who each accounted for about 7% of the total population. Noncitizens include lawfully present and undocumented immigrants. Many individuals live in mixed immigration status families that may include lawfully present immigrants, undocumented immigrants, and/or citizens. One in four children has an immigrant parent, including over one in ten (12%) who are citizen children with at least one noncitizen parent. This brief provides an overview of health coverage for immigrants based on data from the 2023 KFF/LA Times Survey of Immigrants, the largest nationally representative survey focused on immigrants, and discusses potential implications of incoming Trump administration policies for coverage of immigrants.
As of 2023, half (50%) of likely undocumented immigrant adults and one in five (18%) lawfully present immigrant adults reported being uninsured compared to less than one in ten naturalized citizen (6%) and U.S.-born citizen (8%) adults. Noncitizen immigrants are more likely to be uninsured than citizens because they have more limited access to private coverage due to working in jobs that are less likely to provide health benefits. They also face eligibility restrictions for federally funded coverage options, including Medicaid, the Children’s Health Insurance Program (CHIP), Affordable Care Act (ACA) Marketplace coverage, and Medicare. Moreover, those who are eligible for coverage face a range of enrollment barriers including fear, confusion about eligibility rules, and language access challenges. Reflecting their higher uninsured rate, noncitizen immigrants are more likely than citizens to report barriers to accessing health care and skipping or postponing care. Immigrants have lower health care expenditures than their U.S.-born counterparts reflecting lower use of care due to a combination of them being younger and healthier and facing more barriers to accessing care.
Some states have expanded access to health coverage for immigrants. At the state-level there has been continued take up of state options to expand Medicaid and CHIP coverage for lawfully present immigrant children and pregnant people, and a small but growing number of states have expanded fully state-funded coverage to certain groups of low-income people regardless of immigration status. However, many immigrants, particularly those who are undocumented, remain ineligible for coverage options.
Many immigrants remain fearful of accessing assistance programs, including health coverage. The Biden administration reversed prior Trump administration changes to public charge rules so that they did not consider participation in non-cash assistance programs, including Medicaid and CHIP. It also increased funding for Navigator programs that provide enrollment assistance to individuals, which is particularly important for helping immigrant families enroll in coverage. However, as of 2023, nearly three-quarters of immigrant adults, including nine in ten of those who are likely undocumented, reported uncertainty about how use of non-cash assistance programs may impact immigration status or incorrectly believed use may reduce the chances of getting a green card in the future. About a quarter (27%) of likely undocumented immigrant adults and nearly one in ten (8%) lawfully present immigrant adults say they avoided applying for food, housing, or health care assistance in the past year due to immigration-related fears.
Fears about accessing assistance programs, including health coverage, will likely increase under the second Trump administration. It is possible that the incoming Trump administration will reinstate its previous public charge policies, which would likely increase immigration-related fears and negatively impact health care access among immigrant families. The administration has also proposed broad enforcement actions that will also likely increase fear and uncertainty among immigrant families about accessing assistance programs and seeking health care.
Based on federal survey data, as of 2023, there were 47.1 million immigrants residing in the U.S., including 22.4 million noncitizen immigrants and 24.7 million naturalized citizens, who each accounted for about 7% of the total population (Figure 1). Estimates suggest that about six in ten noncitizens were lawfully present immigrants, such as lawful permanent residents (green card holders) and those with a valid work or student visa, while the remaining four in ten were undocumented immigrants, who may include individuals who entered the country without authorization and individuals who entered the country lawfully and stayed after their visa or status expired.1 Many individuals live in mixed immigration status families that may include lawfully present immigrants, undocumented immigrants, and/or citizens. A total of 19 million or one in four children living in the U.S. had an immigrant parent as of 2023, and the majority of these children were citizens (Figure 2). About 8.6 million or 12% were citizen children with at least one noncitizen parent.
window.addEventListener('message', function(event) { if (typeof event.data['datawrapper-height'] !== 'undefined') { var iframes = document.querySelectorAll('iframe'); for (var chartId in event.data['datawrapper-height']) { for (var i=0; i<iframes.length; i++) { if (iframes[i].contentWindow === event.source) { iframes[i].style.height = event.data['datawrapper-height'][chartId] + 'px'; } } } } }); window.addEventListener('message', function(event) { if (typeof event.data['datawrapper-height'] !== 'undefined') { var iframes = document.querySelectorAll('iframe'); for (var chartId in event.data['datawrapper-height']) { for (var i=0; i<iframes.length; i++) { if (iframes[i].contentWindow === event.source) { iframes[i].style.height = event.data['datawrapper-height'][chartId] + 'px'; } } } } });The 2023 KFF/LA Times Survey of Immigrants, the largest nationally representative survey focused on immigrants, provides data on health coverage of immigrant adults and experiences accessing health care, including by immigration status.
Although the majority of uninsured people are citizens, noncitizen immigrant adults, particularly likely undocumented immigrants, are significantly more likely to report being uninsured than citizens. As of 2023, half (50%) of likely undocumented immigrant adults and one in five (18%) lawfully present immigrant adults said they were uninsured compared to 6% of naturalized citizen adults and 8% of U.S.-born citizen adults (Figure 3).
window.addEventListener('message', function(event) { if (typeof event.data['datawrapper-height'] !== 'undefined') { var iframes = document.querySelectorAll('iframe'); for (var chartId in event.data['datawrapper-height']) { for (var i=0; i<iframes.length; i++) { if (iframes[i].contentWindow === event.source) { iframes[i].style.height = event.data['datawrapper-height'][chartId] + 'px'; } } } } });Reflecting their higher uninsured rates, noncitizen immigrants, especially those who are likely undocumented, are more likely than citizens to report barriers to accessing health care and skipping or postponing care. Research shows that having insurance makes a difference in whether and when people access needed care. Those who are uninsured often delay or go without needed care, which can lead to worse health outcomes over the long-term that may ultimately be more complex and expensive to treat. Overall, likely undocumented immigrant adults are more likely than lawfully present immigrant adults and naturalized citizen adults to report not having a usual source of care other than an emergency room, not having a doctor’s visit in the past 12 months, and skipping or postponing care in the past 12 months (Figure 4). Lawfully present immigrant adults also are more likely than naturalized citizen adults to say they have not had a doctor’s visit in the past 12 months.
window.addEventListener('message', function(event) { if (typeof event.data['datawrapper-height'] !== 'undefined') { var iframes = document.querySelectorAll('iframe'); for (var chartId in event.data['datawrapper-height']) { for (var i=0; i<iframes.length; i++) { if (iframes[i].contentWindow === event.source) { iframes[i].style.height = event.data['datawrapper-height'][chartId] + 'px'; } } } } });Research also shows that immigrants have lower health care use and expenditures than their U.S.-born counterparts and help to subsidize health care for U.S.-born citizens. Overall, research shows that immigrants, including lawfully present and undocumented immigrants, use less health care than U.S.-born citizens. Lower use of health care among immigrants likely reflects a combination of them being younger and healthier than their U.S.-born counterparts as well as them facing increased barriers to care including a higher uninsured rate, language access challenges, confusion, and immigration-related fears. Reflecting their lower use of health care, immigrants have lower health care expenditures than their U.S.-born counterparts. KFF analysis of 2021 medical expenditure data show that, on average, annual per capita health care expenditures for immigrants are about two-thirds those of U.S.-born citizens ($4,875 vs. $7,277). Recent research further finds that, because immigrants, especially undocumented immigrants, have lower health care use despite contributing billions of dollars in insurance premiums and taxes, they help subsidize the U.S. health care system and offset the costs of care incurred by U.S.-born citizens.
Despite high rates of employment, noncitizen immigrants have limited access to employer-sponsored coverage. Although most noncitizen immigrant adults say they are employed, they are significantly more likely than citizens to report being lower income (household income less than $40,000) (Figure 5). This pattern reflects disproportionate employment of noncitizen immigrants in low-wage jobs and industries that are less likely to offer employer-sponsored coverage. Given their lower incomes, noncitizen immigrants also face challenges affording employer-sponsored coverage when it is available or through the individual market.
window.addEventListener('message', function(event) { if (typeof event.data['datawrapper-height'] !== 'undefined') { var iframes = document.querySelectorAll('iframe'); for (var chartId in event.data['datawrapper-height']) { for (var i=0; i<iframes.length; i++) { if (iframes[i].contentWindow === event.source) { iframes[i].style.height = event.data['datawrapper-height'][chartId] + 'px'; } } } } });Lawfully present immigrants may qualify for Medicaid and CHIP but are subject to certain eligibility restrictions. In general, lawfully present immigrants must have a “qualified” immigration status to be eligible for Medicaid or CHIP, and many, including most lawful permanent residents or “green card” holders, must wait five years after obtaining qualified status before they may enroll. Some immigrants with qualified status, such as refugees and asylees, as well as citizens of Compact of Free Association (COFA) nations, do not have to wait five years before enrolling. Some immigrants, such as those with temporary protected status, are lawfully present but do not have a qualified status and are not eligible to enroll in Medicaid or CHIP regardless of their length of time in the country (Appendix A). For children and pregnant people, states can eliminate the five-year wait and extend coverage to some lawfully present immigrants without a qualified status. As of October 2024, 37 states plus D.C. have taken up this option for children and 31 states plus D.C. have elected the option for pregnant individuals.
In December 2020, Congress restored Medicaid eligibility for citizens of COFA nations, and in March 2024, eligibility was restored for additional federally funded programs including CHIP. The U.S. government has COFA agreements with the Republic of the Marshall Islands, the Federated States of Micronesia, and the Republic of Palau. Certain citizens of these nations can lawfully work, study, and reside in the U.S., but they had been excluded from federally funded Medicaid since 1996, under the Personal Responsibility and Work Opportunity Reconciliation Act. As part of a COVID-relief package, Congress restored Medicaid eligibility for COFA citizens who meet other eligibility requirements for the program effective December 27, 2020. On March 9, 2024, Congress further extended eligibility for COFA citizens to newly include other federally funded programs such as CHIP, the Supplemental Nutrition Assistance Program (SNAP), and Temporary Assistance for Needy Families (TANF), among others.
A total of 23 states plus D.C. have also extended coverage to pregnant people regardless of immigration status through the CHIP From-Conception-to-End-of-Pregnancy (FCEP) option. While other pregnancy-related coverage in Medicaid and CHIP requires 60 days of postpartum coverage, the CHIP FCEP option does not include this coverage. However, some states that took up this option provide postpartum coverage regardless of immigration status either through a CHIP state plan amendment or using state-only funding. Additionally, eleven states that have implemented the FCEP option (California, Colorado, Connecticut, Illinois, Maine, Massachusetts, Minnesota, New York, Oregon, Rhode Island, and Washington) have used state funding or CHIP health services initiatives to extend postpartum coverage to 12 months to individuals regardless of immigration status to align with the Medicaid extension established by the American Rescue Plan Act, and Maryland extends coverage for four months postpartum through its health services initiative.
Lawfully present immigrants can purchase coverage through the ACA Marketplaces and, like citizens, may receive tax credits to help pay for premiums and cost sharing that vary on a sliding scale based on income. Generally, these tax credits are available to people with incomes starting from 100% of the federal poverty level (FPL) who are not eligible for other affordable coverage. In addition, lawfully present immigrants with incomes below 100% FPL may receive tax credits if they are ineligible for Medicaid based on immigration status. This group includes lawfully present immigrants who are not eligible for Medicaid or CHIP because they are in the five-year waiting period or do not have a “qualified” status. Individuals with Deferred Action for Childhood Arrivals (DACA) status were not considered lawfully present for purposes of health coverage eligibility and remained ineligible despite having a deferred action status, which otherwise qualified for Marketplace coverage. On May 3, 2024, the Biden administration published regulations that changed the definition of lawfully present to include DACA recipients for purposes of eligibility to purchase coverage through the ACA Marketplaces and to receive tax credits to help pay for premiums and cost sharing. The rule became effective on November 1, 2024, to coincide with the 2025 Open Enrollment Period and the Biden administration estimates that 100,000 DACA recipients will receive coverage under the new rule. Implementation of the coverage expansion remains subject to ongoing litigation with DACA recipients in 19 states (AL, AR, FL, IA, ID, IN, KS, KY, MS, MT, ND, NE, NH, OH, SC, SD, TN, TX, VA) being unable to enroll in ACA Marketplace coverage as of January 2025.
Lawfully present immigrants also can qualify for Medicare subject to certain restrictions. Specifically, they must have sufficient work history to qualify for premium-free Medicare Part A. If they do not have sufficient work history, they may qualify if they are lawful permanent residents and have resided in the U.S. for five years immediately prior to enrolling in Medicare, although they must pay premiums to enroll in Part A.
Undocumented immigrants are not eligible to enroll in federally funded coverage including Medicaid, CHIP, or Medicare or to purchase coverage through the ACA Marketplaces. Medicaid payments for emergency services may be made to hospitals on behalf of individuals who are otherwise eligible for Medicaid but for their immigration status. These include lawfully present immigrants who are subject to a five-year bar for Medicaid and undocumented immigrants. These payments may help cover the costs for emergency care provided to immigrants who remain ineligible for Medicaid but are not coverage for individuals. Much of Emergency Medicaid spending goes towards labor and delivery costs and Emergency Medicaid spending represented less than 1% of total Medicaid spending in fiscal year 2023.
As of January 2025, 14 states plus D.C. provide comprehensive state-funded coverage to children regardless of immigration status (Figure 6). These states include California, Colorado, Connecticut, Illinois, Maine, Massachusetts, Minnesota, New Jersey, New York, Oregon, Rhode Island, Utah, Vermont, Washington, and D.C. Additionally, two of these states (New Jersey and Vermont) also provide state-funded coverage to income-eligible pregnant people regardless of immigration status, with Vermont extending this coverage for 12 months postpartum.
window.addEventListener('message', function(event) { if (typeof event.data['datawrapper-height'] !== 'undefined') { var iframes = document.querySelectorAll('iframe'); for (var chartId in event.data['datawrapper-height']) { for (var i=0; i<iframes.length; i++) { if (iframes[i].contentWindow === event.source) { iframes[i].style.height = event.data['datawrapper-height'][chartId] + 'px'; } } } } });As of January 2025, seven states (California, Colorado, Illinois, Minnesota, New York, Oregon, Washington) plus D.C. have also expanded fully state-funded coverage to at least some income-eligible adults regardless of immigration status (Figure 7). Some additional states cover some income-eligible adults who are not otherwise eligible due to immigration status using state-only funds but limit coverage to specific groups, such as lawfully present immigrants who are in the five-year waiting period for Medicaid coverage, or provide more limited benefits. In addition to these states, Maryland plans to allow income-eligible individuals to purchase Marketplace coverage without subsidies regardless of immigration status starting November 2025 through a section 1332 waiver.
window.addEventListener('message', function(event) { if (typeof event.data['datawrapper-height'] !== 'undefined') { var iframes = document.querySelectorAll('iframe'); for (var chartId in event.data['datawrapper-height']) { for (var i=0; i<iframes.length; i++) { if (iframes[i].contentWindow === event.source) { iframes[i].style.height = event.data['datawrapper-height'][chartId] + 'px'; } } } } });Data suggest that state coverage expansions for immigrants make a difference in their health coverage and health care access and use. The 2023 KFF/LA Times Survey of Immigrants shows that immigrant adults residing in states with more expansive coverage policies for immigrants are less likely to be uninsured compared to their counterparts living in states with less expansive coverage policies. California’s 2016 expansion to cover low-income children regardless of immigration status was associated with a 34% decline in uninsurance rates. Similarly, a study found that children who reside in states that have expanded coverage to all children regardless of immigration status were less likely to be uninsured, to forgo medical or dental care, and to go without a preventive health visit than children residing in states that have not expanded coverage. Other research has found that expanding Medicaid coverage to pregnant people regardless of immigration status was associated with higher rates of prenatal care and improved outcomes including increases in average gestation length and birth weight among newborns, while more restrictive state coverage policies were associated with reduced postpartum care utilization. The cost of providing insurance to immigrant adults through Medicaid expansion was also found to be less than half the per person cost of doing so for U.S-born adults. Recent estimates also suggest that the state-funded expansion to all immigrants regardless of status in California could reduce poverty among noncitizen immigrants and their families.
Among immigrants who are eligible for coverage, many remain uninsured because of a range of enrollment barriers, including fear, confusion about eligibility policies, difficulty navigating the enrollment process, and language access challenges. Research suggests that changes to immigration policy made by the first Trump administration contributed to growing fears among immigrant families about enrolling themselves and/or their children in Medicaid and CHIP even if they were eligible. In particular, changes to the public charge policy likely contributed to decreases in participation in Medicaid among immigrant families and their primarily U.S.-born children. The Biden administration reversed many of these changes, including the changes to public charge policy, and increased funding for Navigator programs that provide enrollment assistance to individuals, which is particularly important for helping immigrant families enroll in coverage. However, as of 2023, nearly three-quarters of immigrant adults, including nine in ten of those who are likely undocumented, report uncertainty or an incorrect understanding about how use of non-cash assistance programs may impact immigration status or incorrectly believe use may reduce the chances of getting a green card in the future. About a quarter (27%) of likely undocumented immigrants and nearly one in ten (8%) lawfully present immigrants say they avoided applying for food, housing, or health care assistance in the past year due to immigration-related fears.
Fears about participating in programs, including health coverage, will likely increase under the second Trump administration. Although President-elect Trump has not indicated whether his incoming administration plans to reinstate his first-term changes to public charge policy, doing so could lead to widespread confusion, fears, and broad chilling effects among immigrant families. In addition, broader immigration enforcement actions proposed by President-elect Trump such as mass deportation of immigrants, elimination of the DACA program and its associated ACA health coverage expansion, and ending birthright citizenship for the children of some immigrants could limit access to health care for immigrant families, negatively impact their daily lives and well-being, and increase fears and confusion about participating in programs, including health coverage.
The estimate of the total number of noncitizens in the U.S. is based on the 2023 American Community Survey (ACS) 1-year Public Use Microdata Sample (PUMS). The ACS data do not directly indicate whether an immigrant is lawfully present or not. KFF draws on the methods underlying the 2013 analysis by the State Health Access Data Assistance Center (SHADAC) and the recommendations made by Van Hook et. al. This approach uses the Survey of Income and Program Participation (SIPP) to develop a model that predicts immigration status; it then applies the model to ACS, controlling to state-level estimates of total undocumented population from Pew Research Center. For more detail on the immigration imputation used in this analysis, see Technical Appendix B.