Paul Sanchez
The private medical insurance industry is a significant sector in the United States, with private health insurance being the dominant form of coverage for its citizens. The industry is complex, consisting of both public and private, for-profit and non-profit insurers and providers. While the number of uninsured people in the US has decreased since the Affordable Care Act was signed in 2010, a substantial portion of the population remains uninsured or underinsured, struggling to afford basic medical expenses. The private medical insurance industry in the US is expected to reach a market size of USD 1.59 trillion in 2025 and grow at a CAGR of over 6% to reach USD 2.13 trillion by 2030.
| Characteristics | Values |
|---|---|
| Size of the global insurance market | USD 1.49 trillion in 2024 and is expected to reach USD 2.13 trillion by 2030 |
| Size of the health insurance market | Nearly 25% of the global insurance market |
| Size of the US health insurance market | USD 1.59 trillion in 2025 and is expected to reach USD 2.13 trillion by 2030 |
| Private health insurance market concentration | Increased from 2011 through 2022 |
| Private health insurance market concentration in 2022 | Three or fewer insurers holding at least 80% of the market share in at least 35 states |
| Number of Americans with private health insurance | 61% of the population from 2016 to 2023 |
| Number of Americans enrolled in Medicaid | Over 90 million in 2022 |
| Number of Americans with any form of health insurance | 91.5% |
| Number of Americans with private health insurance only | 66.5% |
| Number of Americans with public health insurance only | 34.8% |
| Number of Americans with employer-sponsored health insurance | 54.4% |
| Number of Americans with health insurance through their employer or the government | 89% of state and local government workers |
| Number of Americans with dental insurance | 40% of private industry workers and 60% of state and local government workers |
| Region with the highest market share of US individual health insurance | South region (37%) |
| US individual health insurance market size in 2022 | USD 1.6 trillion |
| Anticipated CAGR of the private health insurance segment | 6.60% |
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What You'll Learn
Market concentration
The individual market, including the individual exchanges, became more concentrated from 2011 through 2019, with 47 states at its peak, before experiencing a slight decrease in concentration through 2022, with 35 states. The small-group market followed a similar trajectory, with a more recent slowdown in the rate of increase. The large-group market, the largest of the three market types, has consistently demonstrated high concentration with only slight increases over the years.
The growing market concentration in the private health insurance industry has resulted in fewer choices of insurers for consumers, leading to reduced competition in the market. This has contributed to higher premiums and decreased access to affordable health insurance. The Southeast region of the United States, particularly states like Florida with a large retiree population, has emerged as a hotspot for health and medical insurance companies due to its high demand for medical assistance.
The Patient Protection and Affordable Care Act (PPACA) has played a role in shaping market concentration by establishing individual insurance exchanges, which are marketplaces where consumers can compare and select insurance plans. The PPACA included a provision for the Government Accountability Office (GAO) to periodically study health insurance market concentration, with a focus on enrollment data from the individual, small-group, and large-group markets.
While market concentration has intensified, the number of private health insurance companies in each state has decreased over the last decade. This has resulted in a small number of insurers capturing a significant market share, with three or fewer companies holding at least 80% of the market share in numerous states. The high concentration levels create barriers to market entry for new players, perpetuating the issue of market concentration.
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Employer-based insurance
The private medical insurance industry in the United States is a complex system that includes both public and private, for-profit and non-profit insurers, and healthcare providers. While the number of uninsured people in the US has decreased since the Affordable Care Act (ACA) was signed in 2010, a significant portion of the population remains uninsured.
The strength of the employer-based insurance segment lies in its extensive network of healthcare providers, competitive premium rates, and risk-spreading capabilities across larger pools of insured individuals. Major insurance carriers develop specialized products and services tailored to meet the diverse needs of small businesses and large corporations. This segment also benefits from tax incentives for employers and the increasing adoption of value-based care models, which help optimize healthcare costs while improving outcomes.
However, the employer-sponsored insurance market has its challenges. It is less regulated than public insurance programs such as Medicare and Medicaid, relying largely on competition and negotiation among employers, insurers, and healthcare providers. This dynamic affects healthcare prices, as employers and insurers often lack negotiating power against highly consolidated hospitals and other providers. As a result, those with employer-sponsored insurance, their insurers, and employers often pay more than double the rates that Medicare would charge for the same services in the same hospitals.
The COVID-19 pandemic negatively impacted employee-sponsored health insurance due to the rise in unemployment. However, it also presented opportunities for private insurers as more individuals sought private health insurance plans to protect themselves from the financial burden of healthcare expenses.
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Public vs private insurance
The US health insurance system is a combination of public and private, for-profit and non-profit insurers and healthcare providers. The government provides funding for national healthcare programs and other programs, such as those for low-income individuals or veterans, including Medicaid and Medicare. Private insurance has remained the foremost type of coverage and has mainly been provided by employers.
Around 60% of individuals in the US have been covered by private health insurance, which is about three times higher than the percentage covered by Medicaid. Private health insurance extends coverage to those who are willing and able to pay larger premiums for individual coverage or additional coverage. Private health insurance is provided by private insurers who offer plans through employers or sell them directly to individuals through the individual market. The individual market includes the small-group and large-group markets.
Public health insurance is funded by national government subsidies and is designed to provide coverage for those who cannot afford private health insurance or do not meet the qualifications necessary to receive health insurance coverage from the government. Public health insurance is more affordable than private health insurance, as it has lower administrative costs and often requires no co-pays or deductibles. However, it is also less flexible, as policyholders are typically given a limited selection of medical service providers. Many medical establishments still refuse to accept government-sponsored health insurance plans.
The Affordable Care Act (ACA), also known as "Obamacare", was passed in 2010 and includes provisions that stipulate how coverage extends to those who meet certain qualifications. The ACA makes health insurance more accessible to full-time employees by requiring employers with 50 or more employees to provide health insurance for 95% of their full-time staff.
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Healthcare costs
Private health insurance is the most common source of health coverage in the United States. The private business share of health spending accounted for 18% of total healthcare spending, while state and local governments accounted for 16% and other private revenues accounted for 7%. Private health coverage spending may exceed $1.5 trillion in 2023. The US individual health insurance market size was valued at USD 1.6 trillion in 2022 and is expected to grow by 6.08% from 2023 to 2030.
The average annual health insurance cost is $7,080 for ACA marketplace plans. However, the cost varies depending on age, plan type, metal tier, and other factors. For example, the average monthly health insurance cost is $445 for a single 21-year-old, $467 for a single 27-year-old, and $505 for a single 30-year-old. The cost of health insurance plans also differs by insurance company, location, number of people covered, smoking status, and household family size and income.
Market concentration in the health insurance industry has increased from 2011 to 2022, with three or fewer insurers holding at least 80% of the market share in at least 35 states. This concentration has resulted in higher premiums due to reduced competition. The number of private health insurance companies in each state has decreased over the last decade, and as a result, markets have become more concentrated and less competitive, leading to higher premiums and decreased access to affordable health insurance.
The high cost of healthcare in the US is a significant issue, as many individuals struggle to afford basic medical expenses. The lack of a national health insurance system means that people in the US primarily depend on employers for health insurance coverage. However, the COVID-19 pandemic caused a significant increase in unemployment, which negatively impacted employee-sponsored health insurance.
To address the challenge of healthcare costs, the government provides funding for national healthcare programs and initiatives to support economically challenged individuals, such as the aged, disabled, and underprivileged. Medicaid, a national public health insurance program for low-income citizens or permanent residents, covered over 90 million Americans in 2022. Additionally, ACA marketplace plans offer premium tax credits and cost-saving subsidies, making health insurance more accessible.
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Insurance market size
The private medical insurance industry is a significant component of the healthcare system in the United States, with a large market size and a complex structure. In 2022, the US individual health insurance market size was valued at USD 1.6 trillion, and it is projected to expand at a compound annual growth rate (CAGR) of 6.08% from 2023 to 2030. The private segment is expected to grow at an even higher CAGR of 6.6% during this period. The United States Health and Medical Insurance Market size is estimated to reach USD 1.59 trillion in 2025 and is projected to grow at a CAGR of over 6% to attain a size of USD 2.13 trillion by 2030.
The market concentration of private health insurance in the US has generally increased from 2011 to 2022, with three or fewer insurers holding at least 80% of the market share in at least 35 states. This concentration has led to reduced competition, resulting in higher premiums and fewer choices for consumers. However, the market for individuals became slightly less concentrated from 2020 to 2022. The COVID-19 pandemic also impacted the private insurance market, as increased unemployment led to a decline in employer-sponsored health insurance.
The high cost of healthcare in the US drives the demand for private health insurance. Private insurance typically offers more options and shorter wait times compared to public plans, making it an attractive choice for those who can afford it. The prevalence of chronic and lifestyle diseases, such as diabetes, cancer, and cardiovascular diseases, also contributes to the growing demand for private health insurance. Additionally, the lack of a universal healthcare system in the US means that individuals rely on employer-sponsored insurance or private plans to access healthcare services.
The US health insurance market is characterised by a dual system of private and public health insurance coverage options. Private health insurance is the dominant form, accounting for approximately 66.5% of total coverage, while public coverage represents about 34.8%. Employment-based insurance is the backbone of the system, covering around 54.4% of the population. The South region of the US captures the most significant market share, with over 37% of the overall market, as a large population in this region is covered by individual health insurance.
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Frequently asked questions
The private medical insurance industry in the US is quite large. Private health insurance is the dominant form of coverage, with around 60% of individuals in the US covered by it. In 2023, US health insurers earned approximately $1.08 trillion in total net earned premiums. The US health and medical insurance market size was valued at USD 1.59 trillion in 2025 and is expected to grow at a CAGR of greater than 6% to reach USD 2.13 trillion by 2030.
The number of Americans with private health insurance began to rise slowly in 2013 following a sharp dip in the late 1990s and early 2000s. The market concentration of private health insurance generally increased from 2011 through 2020, with three or fewer insurers holding at least 80% of the market share in at least 35 states. However, the market became slightly less concentrated from 2020 to 2022.
The escalating cost of healthcare is a significant factor influencing the size of the private medical insurance industry. As healthcare costs rise, individuals are more likely to invest in private insurance to protect themselves from financial hardships. Additionally, the prevalence of chronic and lifestyle diseases, such as diabetes, heart disease, and obesity, is increasing the demand for private insurance, as individuals seek more comprehensive coverage.
Private health insurance is the dominant form of coverage in the US, accounting for 66.5% of total coverage, while public coverage represents 34.8%. However, it's important to note that the public insurance market also includes government-sponsored programs like Medicare and Medicaid, which cater to specific populations such as the elderly and low-income individuals.
