Best Health Insurance Companies In The USA (2024) Largest and Top

Are you looking for the best health insurance companies in the US? Want to find the best?

Finding the best insurance companies for your health can be a challenging task or like solving a complex puzzle, there are dozens of health insurance companies providing services.

But due to their diverse fee structure, plans, facilities, and coverages, you may confused about picking the right one, however, it is important to choose the right one according to your needs.

We’ve done extensive research to find the facts, data, growth, and overview of these companies. In this article, you will get to know all about these insurance companies.

Best health insurance companies in the USA

How to compare the best companies

Before considering/purchasing a policy from an insurance company, need to understand the requirements, facilities, eligibility, benefits, and other relevant information.

Comparison is the best method to consider the best company.

What you should consider:

  • Budget
  • Coverage
  • Customer service
  • Network of Hospitals/Garages
  • Policy benefits
  • Reputation
  • Customer rating/reviews

Once you know the top companies, visit their service pages, check the pricing plan and included facilities, and then check the online ratings and reviews to learn the customer’s satisfaction with the service.

Best Health insurance companies in the USA

Kaiser Permanente

Each year the company’s ranking is changed – you can check them online, but the question is what are the best, which provides the best and affordable service?

According to a recent analysis by (USA TODAY), Kaiser Permanente is the best health insurance company in (2024).

  1. Kaiser Permanente (best overall)
  2. Aetna (best for young adults)
  3. Blue Cross Blue Shield (Suitable for self-employed)
  4. UnitedHealthcare (Good provider network in 2024)

To learn more about the company overview, customer rating (NCQA quality rating), pros and cons, service plans, cost, and complaint level, you can visit the official website (

According to a research report by (Statista) in the United States (2021), the leading health insurance companies’ market share total valuation was approximately U.S. 137.8 billion dollars.

market share of leading health insurance comapanies

The market leader was UnitedHealth Group Inc with 15.3% market shares, here you can see the graph of top companies, must visit the official website.

According to company offerings, they are categorized; based on – overall, affordability, discounts, customer reviews, company growth, pricing structure, etc).

Here is the table of top leading health insurance companies in the USA and their market share.

RankCompany NameMarket Share
1UnitedHealth Group Inc. 15.3%
2Anthem Inc.10.3%
3Centene Corp.9.1%
4Human Inc. 8.8%
5HealthCare Services Corp. 5.1%
6CVS Health Corp.3.6%
7GuideWell Mutual Holding Corp.2.7%
8Molina HealthCare Inc.2.7%
9Independence Health Group Inc.2.6%
10Kaiser Permanente2.3%

Largest Health Insurance Companies by State

In the United States, health insurance is a primary of healthcare access, as we’ve mentioned the top 10 key players according to their market share.

Company popularity depends on many factors, however, each state has its own set of largest health insurance companies, which provide coverage to residential people.

You can understand the services, offers, facilities, and fee structure by visiting individual company official webpages, which will help to make informed decisions.

largest health insurance companies

Here are some largest players in each state, according to reports by ValuePenguin.

StateLargest Health Insurance Companies
AlabamaBCBS of Alabama, UnitedHealthcare
AlaskaPremera BCBS of Alaska
ArizonaBCBS of Arizona, UnitedHealthcare
ArkansasArkansas BCBS, Centene Corporation
CaliforniaAnthem Blue Cross, Kaiser Permanente, Blue Shield of California
ColoradoAnthem BCBS, Kaiser Permanente
ConnecticutAnthem BCBS, ConnectiCare
DelawareHighmark BCBS, Aetna
FloridaFlorida Blue, UnitedHealthcare, Humana
GeorgiaBCBS of Georgia, Kaiser Permanente
HawaiiHMSA (Hawaii Medical Service Association), Kaiser Permanente
IdahoBlue Cross of Idaho, PacificSource
IllinoisBCBS of Illinois, Health Care Service Corporation
IndianaAnthem BCBS, UnitedHealthcare
IowaWellmark BCBS, UnitedHealthcare
KansasBCBS of Kansas, Sunflower State Health Plan
KentuckyAnthem BCBS, Humana
LouisianaBCBS of Louisiana, Humana
MaineAnthem BCBS, Harvard Pilgrim Health Care
MarylandCareFirst BCBS, Kaiser Permanente
MassachusettsBCBS of Massachusetts, Tufts Health Plan
MichiganBCBS of Michigan, Priority Health
MinnesotaBCBS of Minnesota, Medica
MississippiBCBS of Mississippi, UnitedHealthcare
MissouriAnthem BCBS, Centene Corporation
MontanaBCBS of Montana, PacificSource
NebraskaBCBS of Nebraska, UnitedHealthcare
NevadaAnthem BCBS, Health Plan of Nevada
New HampshireAnthem BCBS, Harvard Pilgrim Health Care
New JerseyHorizon BCBS of New Jersey, UnitedHealthcare
New MexicoBCBS of New Mexico, Presbyterian Health Plan
New YorkEmpire BCBS, Healthfirst, Excellus BCBS
North CarolinaBCBS of North Carolina, UnitedHealthcare
North DakotaBCBS of North Dakota, Sanford Health Plan
OhioAnthem BCBS, Medical Mutual of Ohio
OklahomaBCBS of Oklahoma, UnitedHealthcare
OregonRegence BCBS, Kaiser Permanente
PennsylvaniaIndependence Blue Cross, Highmark BCBS
Rhode IslandBCBS of Rhode Island, UnitedHealthcare
South CarolinaBCBS of South Carolina, Molina Healthcare
South DakotaWellmark BCBS, Avera Health Plans
TennesseeBCBS of Tennessee, Cigna
TexasBCBS of Texas, UnitedHealthcare
UtahRegence BCBS, SelectHealth
VermontBCBS of Vermont, MVP Health Care
VirginiaAnthem BCBS, Optima Health
WashingtonPremera BCBS, Kaiser Permanente
West VirginiaHighmark BCBS, Health Plan of West Virginia
WisconsinAnthem BCBS, WPS Health Insurance
WyomingBCBS of Wyoming, WINhealth

Depending on your state and location you can check the individual company’s specifications, reputation, and facilities. 

First of all, understand what makes a “Good” health insurance company:

  • Affordability: Check the total cost of the insurance policy plan (monthly premiums, deductibles, and out-of-pocket maximums).
  • Network of providers: A good network of doctors, hospitals, and specialists is necessary to care for the person, and to provide the best quality service to cure health-related issues.
  • Customer service reputation: The company should have a good customer service track record, check online customer ratings, and review their other coverages.
  • Plan benefits: With basic coverage, identify what additional benefits are offered by their plan – such as mental health coverage, maternity care, vision, dental, etc.

These are the primary factors, however you can research more to compare the plans. Many online resources are available, that can help you for comparing the plans of different companies.


Here are some Frequently Asked Questions related to health insurance queries.

Which health insurance company is best?

The best company for health insurance depends on individual needs, but according to recent research, Kaiser Permanente is the best company overall.

Who is the number 1 health insurance in the US?

Kaiser Permanente has the most total health enrollments in the US.

Which health insurance covers all 50 states?

Several national health insurance companies cover all 50 states, including Aetna, Blue Cross Blue Shield, and Cigna.

Is health insurance mandatory in the USA?

No, health insurance is not mandatory at the federal level. However, there may be tax penalties for not having coverage.

What should I consider when choosing a health insurance plan?

When choosing health insurance consider your budget, preferred doctors/hospitals, healthcare needs, level of coverage, company reputation, customer service, etc.

Wrapping up

Blue Cross Blue Shield, Aetna, and UnitedHealthcare are the best companies for health insurance in the USA, but Kaiser Permanente is best for overall service.

Before you consider for insuring your health, and when choosing a company, check the eligibility, requirements, and facilities.

We’ve just provided the information that you need to know about the best insurance company. If there are any doubts regarding the blog post, then comment to us.

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