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Rural Health Information Hub

Rural Border Health

The United States-Mexico border region is defined as the area of land 100 kilometers (62.5 miles) north and south of the international boundary. It stretches approximately 2,000 miles from the southern tip of Texas to the Pacific coast of California, as set forth by the La Paz Agreement signed in 1983. This agreement not only defined the border region; it also permitted the federal environmental authorities in the United States and Mexico to undertake cooperative initiatives focused on environmental problems of the area.

U.S.–Mexico Border Region and Rural Areas

U.S.–Mexico Border Region Map
Source: HRSA Map Tool

According to American Community Survey (ACS) data, the counties with the most concentrated Hispanic population are located along the southwestern border of the United States in Texas, New Mexico, Arizona, and California. Of the 44 counties located within the border region, 31 counties are rural areas, designated as either noncore or micropolitan by the Office of Management and Budget. According to 2021 U.S. Census Bureau data, just over 8 million people reside in the U.S.-Mexico border region, with 356,133 living in nonmetro counties. The resident population in the border region has experienced a population growth rate of 6.5% between 2010 and 2021, with much of the growth occurring in the region's 13 metropolitan counties. Between 2010 and 2021, the region's rural counties saw a 9.6% population decline, on average, with only 5 rural counties seeing a rise in population over the 11-year period. The shifting population, along with the continual movement of individuals across the border, places numerous burdens on the economic, social, and health infrastructure of the region, taxing communities already faced with ongoing health and socioeconomic challenges, such as:

  • High rates of poverty
  • Linguistic and cultural barriers
  • Limited access to healthcare
  • Lack of health insurance
  • Restricted water supply
  • Shortage of healthcare workers
  • High rates of unintentional injuries and poisonings
  • Lack of suitable housing, clean water, and appropriate sewage systems

According to, the majority of counties within this region qualify as Health Professional Shortage Areas (HPSAs) and/or Medically Underserved Areas (MUAs) for primary medical care. This region is associated with high rates of communicable diseases including tuberculosis, hepatitis, and HIV, as well as high rates of non-communicable diseases and other causes of death such as cancer, diabetes, liver diseases, homicide, and motor vehicle accidents. Despite these disparities, life expectancy in the border region is higher than the overall rural U.S. rate. According to a 2021 study published in Health Affairs, the life expectancy in 2016-2018 for residents of rural counties in the border region was 78.6 years, 1.7 years longer than the overall rural U.S. life expectancy and 1.9 years longer than in rural nonborder counties in border states. Urban border counties also presented longer life expectancy at 81.4 years compared to 79.5 years in urban counties overall and 80.6 years in urban nonborder counties in border states. The 2021 Rural Border Health Chartbook, published by the Rural & Minority Health Research Center, provides additional information and statistics on health status, behaviors, and disparities for those living in Border counties.

Frequently Asked Questions

Where can I find specific information about border health in my state?

Each border state operates a state Office of Border Health (OBH), which can be contacted for state-specific information and resources.

Office of Border Health
Arizona Department of Health Services
400 West Congress, Suite 116
Tucson, AZ 85701-1352
Phone: 520.770.3110

California Office of Binational Border Health
California Department of Public Health
5353 Mission Center Road, Suite 215
San Diego, CA 92108
Phone: 619.688.0263

New Mexico
New Mexico Office of Border Health
New Mexico Department of Health
1170 N. Solano, Suite L
Las Cruces, NM 88001
Phone: 575.528.5145

Office of Border Health
Texas Department of State Health Services
PO Box 149347
Austin, TX 78714-9347
Phone: 512.776.7675

The 2021 report Border Health Status Report of the 44 U.S. Counties at the U.S.-Mexico Border from the U.S.-Mexico Border Health Commission offers state-level mortality data for 11 identified health issues based on the CDC WONDER border interface. Additionally, the 2014 Chartbook for Hispanic Health Care offers an analysis of healthcare quality scores for each of the 4 border states, broken down for Hispanic and non-Hispanic populations.

What key organizations are working to improve the health of the U.S.-Mexico region?

The United States-México Border Health Commission (BHC) was created as a binational health commission in July 2000 through an agreement between the U.S. Secretary of Health and Human Services and the Secretary of Health of México, and is located within the Office of Global Affairs (OGA) at the Department of Health and Human Services. The mission of the BHC is to provide international leadership to optimize health and quality of life along the U.S.-Mexico border. Strategic actions addressing the healthcare issues of the region can be found in Healthy Border 2020: A Prevention & Health Promotion Initiative.

Arizona, California, New Mexico, and Texas all have state offices working to address border health issues at the state level. See Where can I find specific information about border health in my state? for a listing of state border health offices.

The Centers for Disease Control and Prevention (CDC) Binational Border Infectious Disease Surveillance (BIDS) program is a binational infectious disease surveillance system for the U.S.-Mexico border region. The BIDS program works with the 4 border states facilitating local, state, and federal collaboration to enhance the detection, reporting, and prevention of infectious diseases having binational significance. Some examples of the program include surveillance for respiratory illnesses in border crossing populations, monitoring for the Zika virus among border residents seeking healthcare in Mexico, and an assessment of the rise of Rocky Mountain spotted fever within the border region. The BIDS program also promotes regular communication among partners, including Mexico's Ministry of Health, and supports preparedness for infectious disease outbreaks. CDC's Binational Partnerships offers additional information on BIDS and other partnership efforts.

The Good Neighbor Environmental Board (GNEB) was created in 1992 by the Enterprise for the Americas Initiative Act, Public Law 102-532. The GNEB advises the U.S. President and the Congress on the need for the implementation of environmental and infrastructure projects, including projects affecting agriculture, rural development, public health, and human services to improve the quality of life for residents living within the United States along the U.S.-Mexico border.

What environmental and housing issues impact the health of border populations?

The border region contains a type of settlement called colonias, which are defined by the U.S. Department of Housing and Urban Development (HUD) and USDA Rural Development as “rural communities within the US-Mexico border region that lack adequate water, sewer, or decent housing, or a combination of all three.” Although they may be thriving communities where the members support each other, colonias often exhibit substandard living conditions. Prior to the 1990s in Texas, where most colonias are located, landowners could sell land — usually land that was not tillable and often located on a flood plain — to low-income individuals and families seeking affordable housing. These lands were frequently sold on a contract for deed without any infrastructure improvements, such as potable water and wastewater systems. Often these properties did not have electrical service, and there were no building codes in place to prevent the rapid expansion of substandard housing.

In Arizona, California, and New Mexico, the colonias are much older. In New Mexico, colonias date back to the 1800s, while in Arizona and California they developed in the first half of the 20th century. These colonias evolved from old mining towns and in retirement communities where infrastructure and services were in place. However, the current infrastructure is aging and in need of upgrade.

According to HUD's history of colonias, there are over 2,000 communities eligible for colonia funding in Texas, around 150 in New Mexico, and 15 in California. According to the Arizona Department of Housing there are around 70 colonias in the state.

One of the greatest public health concerns in these communities is the lack of wastewater systems and potable water. Many colonias do not have any type of sewer or drainage system. During heavy rains, sewage can collect in pools on the ground, causing a health hazard. Colonia residents who do not have potable water may rely on water drawn from unsafe wells or buy water in buckets from unknown sources, increasing their chances of exposure to a health hazard.

Other living conditions that impact health include unpaved roads that create dust, causing respiratory problems, as well as homes built in flood-prone areas that experience frequent flooding, which can contaminate the potable water systems. Border 2025: United States-Mexico Environmental Program, a 2021 report from the United States Environmental Protection Agency (EPA) and Mexico's Ministry of the Environment and Natural Resources, provides information on efforts to reduce air pollution, improve water quality and waste management, and update emergency preparedness plans.

For more information on social determinants of health (SDOH), see the Social Determinants of Health for Rural People topic guide.

What are the economic and social conditions that affect access to healthcare for the border population?

Several economic and social conditions affect access to healthcare for the residents of border colonias. According to 2020 county-level data from the U.S. Census Bureau's Small Area Income and Poverty Estimates (SAIPE) Program, rural counties in the border region had an average poverty rate of 14%, compared to a national average of 11.4%. The average median household income for rural border counties was $48,537 compared to the national average of $67,521. Residents of colonias often experience poverty, work low-wage jobs without health insurance, and may lack the legal documentation needed to obtain health insurance. The inability to access and pay for healthcare is a significant barrier. The shortage of healthcare providers significantly impacts access to healthcare by this population group. Often residents of rural border colonias have to travel long distances to healthcare facilities, and fear losing wages for time spent away from work. Limited clinic hours and the lack of knowledge of what programs are available also restrict access to healthcare. In some areas, colonia and other rural communities on both sides of the border rely on crossing the border to access healthcare and pharmacy services that would otherwise be geographically out of reach in their country of residence, a situation that can be challenging when the border is restricted or closed, as was the case during the COVID-19 pandemic.

For additional information about the conditions that affect access to healthcare for the border populations, see the 2017 NRHA policy brief Addressing Health and Health Care Needs in the United States-México Border Region and the 2014 United States-Mexico Border Health Commission white paper Access to Health Care in the U.S.-México Border Region: Challenges and Opportunities.

What types of health conditions and infectious diseases are more prevalent in the border region than in the rest of the United States?

  • According to Emergent Public Health Issues in the U.S. Mexico Border Region, rates of obesity and diabetes in the U.S.-Mexico border region are found to be the highest documented in the world, with obesity affecting 40% of the adult population and with diabetes rates higher than 20% for some border population subgroups.
  • In several border counties the tuberculosis (TB) rates are higher than the national rate. According to the Texas Department of State Health Services, 2 of the 10 counties in the state with the highest rate of TB cases are in the border region. Several Arizona, California, and New Mexico border counties also have demonstrated higher TB rates than the national rates.
  • A 2016 Epidemiology & Infection article showed relatively high prevalence of Hepatitis C Virus (HCV) in Mexican Americans living in the border region of South Texas. This study suggested nearly 88% of those with HCV had no known history of viral hepatitis, indicating HCV may often be undiagnosed and untreated.
  • 2021 estimates from the U.S. Census Bureau identified 3 of the 4 border states as having higher uninsured rates than the national average. Texas has the highest uninsured rate in the U.S. at 18%, followed by Arizona at 10.7%, and New Mexico at 10% compared to the U.S. average of 8.6%. Only California had an uninsured rate below the U.S. average at 7%.
  • Cervical cancer in the border region of Texas is nearly 30% higher than the entire state's rate, indicating a need to improve access to cervical cancer screening and remove barriers to appropriate care.
  • It is not uncommon for patients from the rural U.S.-Mexico border region with chronic conditions such as cancer to seek out binational care — healthcare from both countries — for their treatment due to the limited availability of specialists and geographic distance of healthcare resources. These individuals often experience barriers and challenges related to health insurance, financing, access to medical records, coordinating care, and finding appropriate treatment centers.
  • CDC's Border Infectious Disease Surveillance program (BIDS) is working with the border states to address the prevention, identification, and treatment of Zika and other arboviruses such as dengue and chikungunya that can be carried by the same vector, Aedes aegypti mosquitoes. Also, state departments of health from the border states, along with CDC, are working to improve methods of diagnosis and management of tickborne Rickettsial diseases, such as the life threatening Rocky Mountain Spotted Fever (RMSF), and other tickborne diseases.
  • There is evidence indicating Chagas disease to be a significant public health threat in the U.S.-Mexico border region. Chagas disease is a chronic parasitic infection capable of causing irreversible tissue damage.

The BIDS program also facilitates the Binational Communication and Coordination on Disease Notifications and Outbreaks between the U.S. and Mexico, which is outlined in Operational Protocol for U.S.-Mexico Binational Communication and Coordination on Disease Notifications and Outbreaks.

What are some strategies that have been used to improve access to care in rural border communities?

One of the more successful approaches to improving access to healthcare in the rural border region is for healthcare facilities to use the community health worker (CHW, also known as promotora de salud) model. CHWs facilitate education and advocate for healthy change. CHWs act as a bridge for the border community to the providers of healthcare and human services. For additional information about CHWs see the Community Health Workers in Rural Settings topic guide and the Community Health Workers Toolkit.

Another approach is to support and develop Health Center Program grantees, often called Federally Qualified Health Centers (FQHCs) or community health centers (CHCs), that are federally funded through the Health Resources and Services Administration (HRSA) Bureau of Primary Health Care, as authorized under section 330 of the Public Health Service Act. Health Center Program grantees serve underserved communities or special populations including migrant and seasonal farmworkers, persons experiencing homelessness, and residents of public housing. Most importantly, they provide healthcare to everyone regardless of their ability to pay out-of-pocket expenses, or whether they have health insurance by supporting an income-based sliding fee scale.

Also, school-based health centers (SBHC) operate in the border region as a partnership between the school and a community health organization, such as a community health center or FQHC. SBHCs enable children with acute or chronic illnesses to attend school, but also work to improve the overall health and wellness of all school children through health screenings, health promotion, and disease prevention activities. Both FQHCs and SBHCs are actively working to address healthcare issues that are found in the border region. For additional information about Health Centers, see HRSA's What is a Health Center? and our topic guide Federally Qualified Health Centers (FQHCs) and the Health Center Program.

Are there recruitment incentive programs available to primary care physicians and other healthcare professionals who work in the United States in the U.S.-Mexico border region?

More than half of the counties located in the U.S.-Mexico border region are federally designated as Medically Underserved Areas (MUAs) and/or Health Professional Shortage Areas (HPSAs), making a large portion of this region eligible for participation in the National Health Service Corps (NHSC) program. The NHSC offers scholarships and loan repayment programs for primary care medical, dental, and mental or behavioral health professionals in exchange for a minimum 2-year obligation to work in an approved NHSC site that is a HPSA or MUA. For more information about the NHSC and other types of loan forgiveness and loan repayment programs for students and healthcare professionals willing to work in rural and underserved areas, see our topic guide Scholarships, Loans, and Loan Repayment for Rural Health Professions.

The Conrad State 30 Program addresses physician shortages in rural areas by allowing U.S. state health departments to request J-1 Visa Waivers for foreign physicians who agree to work in federally designated Health Professional Shortage Areas or Medically Underserved Areas. This program is only available to international medical graduates who have completed their residency or fellowship in the United States. It waives the 2-year home residency requirement, allowing the physician to stay in the United States.

States in the border region may offer specific funding programs to support the recruitment of physicians and/or other healthcare providers to rural communities, including border areas, by granting student loan reimbursements, scholarships, or stipend payments to eligible professionals. For a list of these programs, see the Funding & Opportunities section for each state in the border region.

What kinds of funding programs are appropriate for the ongoing development of healthcare programs and services in the U.S.-Mexico border region?

The border region faces many challenges restricting access to healthcare, not only due to the shortage of providers, but also due to several adverse social determinants of health. These adverse factors include:

  • Poverty
  • Limited English proficiency
  • Inadequate housing
  • Lack of nutritious food
  • Poor sanitation
  • Limited water supply

Funding programs focused on addressing these challenges and/or reducing or eliminating the social factors that contribute to poor health would be most appropriate in effecting change in this region.

The U.S. Department of Housing and Urban Development offers information on State CDBG Colonias Set-Aside funding, with links to state agencies that administer the funds. The guide also provides information on additional funding sources to support housing, water, and waste management improvements.

The following topic areas in our Funding & Opportunities library features programs that address key factors that impact population health in the border region:

For a list of state-specific programs see the Funding & Opportunities by State section for each state in the border region: California, Arizona, New Mexico, and Texas.

Last Reviewed: 10/21/2022