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According to the survey, the number of currently uninsured adults dropped from 37 million in 2010 to 24 million in 2020. However, the number of those insured, but underinsured (those with such high out-of-pocket costs or deductibles relative to income that they were effectively underinsured) had increased from 29 million in 2010 to 41 million in 2020. This statistic displays the number of health insured vs. uninsured adults in millions in the United States from 2003 to 2020.

Number of health insured vs. uninsured adults in the United States from 2003 to 2020 (in millions)

Characteristic	Insured all year, not underinsured	Insured all year, underinsured	Insured now, had a coverage gap	Uninsured now
2020	110	41	19	24
2018	107	44	19	24
2016	105	41	18	23
2014	101	31	23	29
2012	99	29	19	36
2010	103	29	15	37
2005	109	16	16	32
2003	112	15	16	30

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Release date

August 2020

More information

Region

United States

Survey time period

2003 to 2020

Number of respondents

around 4,000-6,000

Age group

19-64 years

Method of interview

Telephone interview

Supplementary notes

Figures from 2003 to 2005 were taken from previous reports from the same source and can be found here
Notes: "Uninsured now" refers to adults who reported being uninsured at the time of the survey; "Insured now, had a gap" refers to adults who were insured at the time of survey but were uninsured at any point during the year before the survey field date; "Insured all year, underinsured" refers to adults who were insured for the full year up to and on the survey field date, but had such high out-of pocket costs or deductibles relative to their income that they were effectively underinsured.
Data: Commonwealth Fund Biennial Health Insurance Surveys (2003, 2005, 2010, 2012, 2014, 2016, 2018, 2020)

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