A third or more of U.S. adults experience feelings of loneliness or isolation at least some of the time, according to a survey by Cigna, a health services organization. More than half said they sometimes or always feel as though no one knows them well, and 46 percent reported sometimes or always feeling alone.

Source: “Cigna U.S. Loneliness Index,” Cigna, May 2018, p. 4, https://tinyurl.com/y6ue3pv6

Data for the graphic are as follows:

Feeling of Respondents Percentage Who Always Experience Feelings of Loneliness Percentage Who Sometimes Experience Feelings of Loneliness Percentage Who Rarely Experience Feelings of Loneliness Percentage Who Never Experience Feelings of Loneliness
Interests and ideas are not shared by those around you 9% 50% 34% 7%
People are around you but not with you 10% 46% 33% 11%
Feel shy 11% 45% 31% 13%
No one really knows you well 13% 41% 33% 13%
Left out 8% 38% 39% 15%
Alone 10% 36% 37% 17%
Lack companionship 10% 34% 34% 23%
Relationships are not meaningful 7% 36% 39% 18%
Isolated from others 8% 35% 37% 20%
No longer close to anyone 8% 31% 35% 26%
There is no one you can turn to 7% 29% 36% 28%

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