While only a handful of payers dominate the health insurance market nationally, the cast diversifies when broken down by the largest payer in each state.
Rankings are based on enrollment totals for 2021 from S&P Capital IQ. 2022 enrollment data is expected in mid-2023, according to ValuePenguin.
The largest payer in each state by market share:
1. Alabama: BCBS
2. Alaska: Premera Blue Cross
3. Arizona: BCBS
4. Arkansas: BCBS
5. California: Anthem
6. Colorado: Anthem
7. Connecticut: Anthem
8. Delaware: Highmark
9. District of Columbia: CareFirst BCBS
10. Florida: Florida Blue
11. Georgia: Anthem
12. Hawaii: Hawaii Medical Service Association (BCBS)
13. Idaho: UnitedHealthcare
14. Illinois: BCBS
15. Indiana: Anthem
16. Iowa: Wellmark BCBS
17. Kansas: Centene
18. Kentucky: Anthem
19. Louisiana: UnitedHealthcare
20. Maine: Anthem
21. Maryland: CareFirst BCBS
22. Massachusetts: BCBS
23. Michigan: BlCBS
24. Minnesota: BCBS
25. Mississippi: BCBS
26. Missouri: Anthem
27. Montana: BCBS
28. Nebraska: UnitedHealthcare
29. Nevada: UnitedHealthcare
30. New Hampshire: Anthem
31. New Jersey: Cigna
32. New Mexico: Presbyterian Healthcare Services
33. New York: UnitedHealthcare
34. North Carolina: BCBS
35. North Dakota: BCBS
36. Ohio: Anthem
37. Oklahoma: BCBS
38. Oregon: PacificSource
39. Pennsylvania: UPMC Health Plan
40. Rhode Island: BCBS
41. South Carolina: BCBS
42. South Dakota: Wellmark
43. Tennessee: BCBS
44. Texas: BCBS
45. Utah: Intermountain Healthcare
46. Vermont: BCBS
47. Virginia: Anthem
48. Washington: Molina Healthcare
49. West Virginia: Aetna
50. Wisconsin: Anthem
51. Wyoming: BCBS