Small Group Insurance Market Competition | KFF State Health Facts

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Small Group Insurance Market Competition

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Small Group Insurance Market Competition

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2024

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	5516	0.67	3
Alabama	9604	0.98	1
Alaska	8629	0.93	1
Arizona	3882	0.5	4
Arkansas	5443	0.71	3
California	2411	0.36	5
Colorado	5172	0.62	2
Connecticut	4193	0.57	3
Delaware	8065	0.89	2
District of Columbia	6554	0.8	3
Florida	5250	0.65	2
Georgia	2597	0.39	5
Hawaii	3632	0.53	4
Idaho	2716	0.33	4
Illinois	7889	0.88	2
Indiana	4973	0.68	3
Iowa	7980	0.89	2
Kansas	6653	0.81	3
Kentucky	7683	0.87	2
Louisiana	8705	0.93	2
Maine	3391	0.45	3
Maryland	6209	0.77	3
Massachusetts	3089	0.43	5
Michigan	4498	0.62	3
Minnesota	5052	0.65	3
Mississippi	8626	0.93	2
Missouri	3519	0.42	3
Montana	4417	0.57	3
Nebraska	3578	0.46	3
Nevada	7126	0.84	2
New Hampshire	5324	0.68	3
New Jersey	5645	0.71	3
New Mexico	4031	0.55	3
New York	2851	0.48	5
North Carolina	6165	0.75	2
North Dakota	6891	0.82	3
Ohio	5072	0.68	3
Oklahoma	8181	0.9	2
Oregon	2426	0.36	6
Pennsylvania	2636	0.37	4
Rhode Island	8039	0.89	2
South Carolina	8289	0.91	2
South Dakota	6231	0.77	3
Tennessee	5883	0.72	2
Texas	8007	0.89	2
Utah	6320	0.77	2
Vermont	5188	0.6	2
Virginia	2927	0.46	5
Washington	3370	0.49	4
West Virginia	8610	0.93	1
Wisconsin	1961	0.31	5
Wyoming	5754	0.74	3

2023

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	5398	0.66	3
Alabama	9606	0.98	1
Alaska	8565	0.92	2
Arizona	3508	0.42	4
Arkansas	5324	0.7	3
California	2434	0.36	4
Colorado	5027	0.61	2
Connecticut	2947	0.39	4
Delaware	8330	0.91	2
District of Columbia	6648	0.8	3
Florida	4830	0.6	2
Georgia	2217	0.29	5
Hawaii	3509	0.51	4
Idaho	2678	0.36	4
Illinois	7462	0.86	2
Indiana	4383	0.62	3
Iowa	7762	0.88	2
Kansas	6458	0.8	3
Kentucky	5148	0.68	3
Louisiana	8664	0.93	2
Maine	3070	0.37	4
Maryland	6363	0.78	2
Massachusetts	3060	0.43	5
Michigan	4427	0.61	3
Minnesota	7792	0.88	2
Mississippi	8362	0.91	2
Missouri	3438	0.43	3
Montana	4281	0.55	3
Nebraska	5831	0.71	2
Nevada	7237	0.84	2
New Hampshire	4875	0.63	3
New Jersey	5531	0.71	3
New Mexico	3992	0.54	3
New York	2701	0.47	5
North Carolina	5797	0.71	2
North Dakota	7854	0.88	2
Ohio	3552	0.53	4
Oklahoma	8059	0.89	2
Oregon	2564	0.36	5
Pennsylvania	2616	0.36	4
Rhode Island	7846	0.88	1
South Carolina	7931	0.88	2
South Dakota	5889	0.74	3
Tennessee	5180	0.66	2
Texas	7473	0.86	2
Utah	6303	0.77	2
Vermont	5119	0.58	2
Virginia	2910	0.45	5
Washington	3227	0.46	4
West Virginia	8237	0.91	2
Wisconsin	1926	0.32	5
Wyoming	6332	0.78	3

2022

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	5219	0.64	3
Alabama	9550	0.98	1
Alaska	8594	0.93	2
Arizona	3638	0.44	3
Arkansas	5329	0.7	3
California	2449	0.37	4
Colorado	4990	0.62	2
Connecticut	2605	0.35	4
Delaware	8081	0.89	2
District of Columbia	6788	0.81	3
Florida	4554	0.57	2
Georgia	2206	0.3	5
Hawaii	3557	0.52	4
Idaho	2846	0.42	4
Illinois	7159	0.84	2
Indiana	3826	0.55	4
Iowa	7317	0.84	2
Kansas	6265	0.78	4
Kentucky	4464	0.6	3
Louisiana	8618	0.93	2
Maine	2989	0.37	4
Maryland	6492	0.79	2
Massachusetts	3047	0.42	5
Michigan	4486	0.62	3
Minnesota	4581	0.49	2
Mississippi	8543	0.92	2
Missouri	3583	0.47	3
Montana	4181	0.54	3
Nebraska	5618	0.68	2
Nevada	6669	0.81	2
New Hampshire	4383	0.57	3
New Jersey	5363	0.7	3
New Mexico	2674	0.32	4
New York	2783	0.48	4
North Carolina	5334	0.64	2
North Dakota	7513	0.86	2
Ohio	3766	0.56	4
Oklahoma	7751	0.88	3
Oregon	2609	0.38	5
Pennsylvania	2592	0.36	4
Rhode Island	8251	0.91	2
South Carolina	7683	0.87	2
South Dakota	5653	0.72	3
Tennessee	5488	0.69	2
Texas	7137	0.84	2
Utah	6134	0.76	2
Vermont	5004	0.51	2
Virginia	3011	0.46	5
Washington	3127	0.43	4
West Virginia	7895	0.88	2
Wisconsin	1976	0.33	4
Wyoming	7007	0.83	3

2021

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	5222	0.64	3
Alabama	9517	0.98	1
Alaska	8490	0.92	2
Arizona	3709	0.48	4
Arkansas	4766	0.64	3
California	2494	0.38	4
Colorado	4871	0.62	2
Connecticut	3382	0.47	3
Delaware	8251	0.91	2
District of Columbia	6385	0.78	3
Florida	4133	0.53	3
Georgia	2795	0.37	4
Hawaii	3437	0.51	4
Idaho	3138	0.47	4
Illinois	6995	0.82	2
Indiana	3752	0.55	3
Iowa	6901	0.81	2
Kansas	5910	0.76	4
Kentucky	4078	0.55	3
Louisiana	8318	0.91	2
Maine	3072	0.42	4
Maryland	6239	0.77	2
Massachusetts	3077	0.43	5
Michigan	4567	0.63	3
Minnesota	8963	0.95	1
Mississippi	8400	0.91	2
Missouri	3566	0.48	3
Montana	4577	0.58	2
Nebraska	5354	0.64	2
Nevada	6768	0.81	2
New Hampshire	3859	0.49	3
New Jersey	5303	0.69	3
New Mexico	2683	0.33	4
New York	2958	0.49	4
North Carolina	4971	0.54	2
North Dakota	7663	0.87	2
Ohio	4033	0.59	4
Oklahoma	7523	0.86	3
Oregon	2636	0.4	5
Pennsylvania	2606	0.35	4
Rhode Island	7214	0.84	3
South Carolina	7602	0.86	2
South Dakota	5563	0.71	3
Tennessee	4778	0.59	2
Texas	6980	0.83	3
Utah	5899	0.74	3
Vermont	4987	0.54	2
Virginia	2887	0.44	5
Washington	3275	0.44	4
West Virginia	7360	0.85	2
Wisconsin	2068	0.35	4
Wyoming	7591	0.86	2

2020

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	5083	0.63	3
Alabama	9540	0.98	1
Alaska	8748	0.93	1
Arizona	3712	0.5	4
Arkansas	4433	0.6	3
California	2510	0.39	4
Colorado	4699	0.6	2
Connecticut	3516	0.48	3
Delaware	7920	0.89	2
District of Columbia	6260	0.77	3
Florida	3920	0.47	3
Georgia	2994	0.4	4
Hawaii	3424	0.5	4
Idaho	3349	0.49	4
Illinois	6723	0.81	2
Indiana	3758	0.54	4
Iowa	6638	0.79	2
Kansas	5844	0.75	4
Kentucky	4002	0.54	3
Louisiana	8019	0.89	2
Maine	3346	0.48	4
Maryland	5900	0.73	2
Massachusetts	2884	0.46	4
Michigan	4607	0.64	4
Minnesota	4830	0.52	2
Mississippi	8078	0.89	2
Missouri	3667	0.49	3
Montana	4770	0.57	2
Nebraska	5107	0.58	2
Nevada	7059	0.83	2
New Hampshire	3504	0.4	3
New Jersey	5331	0.7	3
New Mexico	2743	0.34	4
New York	3170	0.52	4
North Carolina	4984	0.51	2
North Dakota	7731	0.87	2
Ohio	4046	0.59	4
Oklahoma	7120	0.84	3
Oregon	2563	0.38	5
Pennsylvania	2522	0.35	6
Rhode Island	6843	0.82	3
South Carolina	7177	0.83	2
South Dakota	5499	0.7	3
Tennessee	4979	0.64	3
Texas	6926	0.82	3
Utah	5899	0.74	2
Vermont	4985	0.50	2
Virginia	2729	0.41	4
Washington	3192	0.42	4
West Virginia	7131	0.83	2
Wisconsin	2050	0.36	4
Wyoming	7862	0.88	2

2019

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	4828	0.61	3
Alabama	9477	0.97	1
Alaska	8983	0.95	1
Arizona	3719	0.51	4
Arkansas	4232	0.58	3
California	2522	0.39	4
Colorado	3553	0.5	3
Connecticut	2894	0.36	4
Delaware	7830	0.88	3
District of Columbia	6290	0.78	3
Florida	3788	0.47	3
Georgia	2983	0.41	4
Hawaii	3478	0.51	4
Idaho	3494	0.5	4
Illinois	6400	0.78	2
Indiana	3677	0.52	3
Iowa	6775	0.8	2
Kansas	4647	0.65	4
Kentucky	3950	0.53	3
Louisiana	7380	0.85	3
Maine	3647	0.53	4
Maryland	5671	0.71	2
Massachusetts	3217	0.51	4
Michigan	4702	0.65	4
Minnesota	3117	0.41	4
Mississippi	7846	0.88	2
Missouri	3398	0.44	3
Montana	4817	0.55	2
Nebraska	5075	0.58	2
Nevada	4833	0.67	3
New Hampshire	3486	0.4	3
New Jersey	5026	0.66	3
New Mexico	2784	0.36	4
New York	3201	0.52	4
North Carolina	4909	0.55	2
North Dakota	7076	0.83	3
Ohio	2919	0.38	3
Oklahoma	6147	0.77	3
Oregon	2372	0.31	5
Pennsylvania	2399	0.34	6
Rhode Island	6629	0.8	3
South Carolina	6785	0.8	2
South Dakota	5661	0.72	3
Tennessee	5016	0.65	3
Texas	6378	0.79	3
Utah	6054	0.75	2
Vermont	5210	0.60	2
Virginia	2685	0.39	4
Washington	3103	0.41	4
West Virginia	6748	0.81	2
Wisconsin	1693	0.32	6
Wyoming	7560	0.86	2

2018

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	4643	0.59	3
Alabama	9307	0.96	1
Alaska	7366	0.85	2
Arizona	3238	0.48	4
Arkansas	4622	0.62	3
California	2477	0.39	4
Colorado	3284	0.46	3
Connecticut	2859	0.43	4
Delaware	7442	0.85	2
District of Columbia	6400	0.79	2
Florida	3153	0.4	5
Georgia	2805	0.4	4
Hawaii	3351	0.49	4
Idaho	3606	0.49	4
Illinois	5754	0.73	2
Indiana	3842	0.53	4
Iowa	6974	0.82	2
Kansas	3799	0.57	4
Kentucky	3970	0.51	3
Louisiana	6807	0.82	3
Maine	3581	0.53	4
Maryland	5507	0.7	2
Massachusetts	3386	0.53	4
Michigan	4467	0.63	4
Minnesota	3243	0.44	4
Mississippi	7584	0.86	2
Missouri	2879	0.37	4
Montana	4790	0.55	2
Nebraska	4782	0.57	2
Nevada	4541	0.65	5
New Hampshire	3737	0.43	3
New Jersey	4655	0.64	3
New Mexico	2768	0.39	4
New York	3046	0.51	4
North Carolina	4702	0.53	2
North Dakota	7256	0.84	3
Ohio	2712	0.35	4
Oklahoma	5076	0.68	3
Oregon	2457	0.38	5
Pennsylvania	2113	0.31	6
Rhode Island	6790	0.82	3
South Carolina	7072	0.82	2
South Dakota	6089	0.75	2
Tennessee	4909	0.65	3
Texas	5136	0.69	3
Utah	5525	0.72	3
Vermont	5493	0.66	2
Virginia	2630	0.4	4
Washington	2935	0.37	4
West Virginia	6764	0.81	3
Wisconsin	1540	0.31	7
Wyoming	7581	0.86	2

2017

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	4557	0.59	4
Alabama	9246	0.96	1
Alaska	5399	0.71	3
Arizona	2807	0.42	5
Arkansas	4912	0.65	3
California	2304	0.38	5
Colorado	2996	0.4	4
Connecticut	2614	0.4	5
Delaware	6135	0.74	2
District of Columbia	6634	0.8	2
Florida	2890	0.42	5
Georgia	2637	0.38	4
Hawaii	3273	0.48	4
Idaho	3436	0.42	3
Illinois	5719	0.74	2
Indiana	3884	0.54	4
Iowa	7394	0.85	2
Kansas	4285	0.62	4
Kentucky	3933	0.5	3
Louisiana	6833	0.82	3
Maine	2802	0.37	4
Maryland	5023	0.67	3
Massachusetts	3159	0.51	4
Michigan	3968	0.58	4
Minnesota	3420	0.45	4
Mississippi	7524	0.86	2
Missouri	2705	0.4	5
Montana	5483	0.68	2
Nebraska	5114	0.65	3
Nevada	3769	0.58	5
New Hampshire	4376	0.5	2
New Jersey	3806	0.56	4
New Mexico	2792	0.35	4
New York	2653	0.47	6
North Carolina	4343	0.47	3
North Dakota	7347	0.85	3
Ohio	2614	0.37	4
Oklahoma	5109	0.69	3
Oregon	2239	0.38	6
Pennsylvania	2077	0.31	6
Rhode Island	6992	0.83	3
South Carolina	7690	0.87	2
South Dakota	6473	0.79	2
Tennessee	4773	0.64	3
Texas	4675	0.65	3
Utah	4964	0.68	4
Vermont	7698	0.87	2
Virginia	2627	0.43	5
Washington	2776	0.36	4
West Virginia	7105	0.84	2
Wisconsin	1395	0.28	6
Wyoming	7586	0.86	2

2016

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	4430	0.58	4
Alabama	9385	0.97	1
Alaska	4208	0.6	4
Arizona	2305	0.31	5
Arkansas	4697	0.62	3
California	2220	0.36	6
Colorado	2411	0.33	5
Connecticut	2235	0.33	6
Delaware	6093	0.74	2
District of Columbia	6853	0.82	2
Florida	2935	0.37	5
Georgia	2529	0.36	4
Hawaii	3260	0.48	4
Idaho	3628	0.48	3
Illinois	5293	0.71	3
Indiana	3636	0.53	4
Iowa	7145	0.84	2
Kansas	4514	0.65	5
Kentucky	4020	0.5	3
Louisiana	6057	0.76	3
Maine	2736	0.37	4
Maryland	4913	0.67	3
Massachusetts	2794	0.44	4
Michigan	3859	0.57	4
Minnesota	3938	0.45	4
Mississippi	7415	0.85	2
Missouri	2685	0.41	5
Montana	6665	0.8	2
Nebraska	4412	0.53	3
Nevada	3338	0.53	5
New Hampshire	4146	0.46	3
New Jersey	3531	0.53	4
New Mexico	2803	0.32	4
New York	2627	0.46	6
North Carolina	4205	0.56	3
North Dakota	7113	0.84	3
Ohio	2519	0.36	3
Oklahoma	5677	0.74	3
Oregon	1582	0.28	7
Pennsylvania	1961	0.3	5
Rhode Island	6967	0.82	2
South Carolina	7709	0.87	2
South Dakota	5388	0.68	2
Tennessee	4844	0.64	3
Texas	3996	0.57	3
Utah	4310	0.62	4
Vermont	8065	0.89	2
Virginia	2714	0.44	5
Washington	3515	0.53	4
West Virginia	6838	0.82	2
Wisconsin	1858	0.39	6
Wyoming	7385	0.85	2

2015

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	4268	0.56	4
Alabama	9407	0.97	1
Alaska	5213	0.71	4
Arizona	2021	0.25	5
Arkansas	5084	0.67	3
California	2198	0.35	5
Colorado	2203	0.28	5
Connecticut	2500	0.38	4
Delaware	5709	0.7	2
District of Columbia	7233	0.84	2
Florida	2653	0.35	5
Georgia	2286	0.29	5
Hawaii	3186	0.47	4
Idaho	3917	0.54	3
Illinois	4697	0.66	4
Indiana	3684	0.55	3
Iowa	6406	0.79	2
Kansas	4503	0.65	5
Kentucky	4165	0.51	3
Louisiana	6085	0.76	3
Maine	3202	0.44	4
Maryland	4854	0.67	4
Massachusetts	2719	0.42	5
Michigan	3565	0.55	4
Minnesota	3883	0.44	4
Mississippi	7097	0.83	2
Missouri	2763	0.43	5
Montana	5467	0.71	2
Nebraska	3177	0.4	3
Nevada	2989	0.5	5
New Hampshire	4721	0.56	2
New Jersey	3648	0.54	4
New Mexico	2956	0.38	4
New York	2371	0.42	5
North Carolina	4433	0.61	3
North Dakota	6969	0.83	3
Ohio	2553	0.38	3
Oklahoma	5421	0.72	4
Oregon	1230	0.16	8
Pennsylvania	1876	0.26	6
Rhode Island	6576	0.79	2
South Carolina	6859	0.82	3
South Dakota	4469	0.61	4
Tennessee	4897	0.66	3
Texas	4123	0.6	4
Utah	3604	0.55	4
Vermont	7984	0.89	2
Virginia	2781	0.45	5
Washington	3707	0.56	5
West Virginia	6852	0.81	2
Wisconsin	1546	0.33	6
Wyoming	5222	0.7	4

2014

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	4184	0.56	4
Alabama	9485	0.97	1
Alaska	4561	0.65	5
Arizona	2019	0.23	5
Arkansas	4941	0.66	3
California	2176	0.32	5
Colorado	2282	0.28	5
Connecticut	2724	0.36	4
Delaware	5657	0.7	2
District of Columbia	6999	0.83	2
Florida	2735	0.36	4
Georgia	2332	0.3	5
Hawaii	3772	0.56	4
Idaho	3650	0.5	4
Illinois	4328	0.62	4
Indiana	4136	0.61	3
Iowa	4795	0.66	4
Kansas	4293	0.63	5
Kentucky	4323	0.57	3
Louisiana	6420	0.79	3
Maine	3396	0.41	3
Maryland	5132	0.69	3
Massachusetts	2870	0.46	5
Michigan	3804	0.58	4
Minnesota	3140	0.37	4
Mississippi	6686	0.8	2
Missouri	2895	0.46	5
Montana	5037	0.67	2
Nebraska	2892	0.44	4
Nevada	2370	0.37	5
New Hampshire	5373	0.66	2
New Jersey	4143	0.6	4
New Mexico	3724	0.47	3
New York	2747	0.48	4
North Carolina	4871	0.66	3
North Dakota	7262	0.84	2
Ohio	2669	0.39	3
Oklahoma	4754	0.66	4
Oregon	1374	0.19	8
Pennsylvania	1650	0.23	7
Rhode Island	6529	0.78	2
South Carolina	6219	0.77	3
South Dakota	4286	0.6	3
Tennessee	5264	0.7	3
Texas	3811	0.57	4
Utah	3056	0.48	4
Vermont	7061	0.82	2
Virginia	2687	0.44	5
Washington	2899	0.45	5
West Virginia	6731	0.8	2
Wisconsin	1673	0.29	5
Wyoming	4766	0.65	4

2013

Location	Herfindahl-Hirschman Index (HHI)	Market Share of Largest Insurer	Number of Insurers with Greater than 5% Market Share
United States	4166	0.56	4
Alabama	9498	0.97	1
Alaska	4867	0.67	4
Arizona	2067	0.25	5
Arkansas	4819	0.65	3
California	2505	0.35	4
Colorado	2363	0.30	5
Connecticut	2832	0.40	4
Delaware	5233	0.64	2
District of Columbia	6878	0.82	2
Florida	2841	0.35	4
Georgia	2295	0.34	4
Hawaii	4407	0.60	3
Idaho	3659	0.49	3
Illinois	4166	0.61	4
Indiana	3779	0.58	3
Iowa	4846	0.65	3
Kansas	4275	0.62	5
Kentucky	5035	0.67	3
Louisiana	6683	0.81	3
Maine	3457	0.40	3
Maryland	5137	0.69	3
Massachusetts	2706	0.41	5
Michigan	3951	0.59	4
Minnesota	3042	0.38	4
Mississippi	7374	0.85	2
Missouri	3110	0.49	4
Montana	5045	0.69	4
Nebraska	4568	0.63	3
Nevada	2373	0.36	4
New Hampshire	5846	0.73	2
New Jersey	4013	0.59	4
New Mexico	2760	0.33	4
New York	2779	0.48	5
North Carolina	4613	0.63	3
North Dakota	7450	0.86	2
Ohio	2729	0.40	3
Oklahoma	4216	0.61	4
Oregon	1563	0.23	6
Pennsylvania	1670	0.21	5
Rhode Island	6348	0.76	2
South Carolina	5234	0.70	4
South Dakota	4228	0.60	3
Tennessee	5231	0.69	3
Texas	3512	0.54	4
Utah	2622	0.41	4
Vermont	6165	0.74	2
Virginia	2813	0.46	5
Washington	2499	0.37	5
West Virginia	5961	0.74	2
Wisconsin	1488	0.32	7
Wyoming	4,923	0.66	3

Topics

State Health Policy and Data

Tags

Small Group Coverage

Categories

Insurance Market Competitiveness