Why Your Late Forties Are the Loneliest Stretch for Adults Over 45
Loneliness does not peak in old age. It peaks in your late 40s. A landmark study of over 3,000 adults reveals why midlife is the loneliest season and what research says you can do about it.
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The short version
- In a 2025 AARP survey of adults 45 and older, loneliness was highest at ages 45 to 49 (49%) and tended to fall with age.
- The survey did not ask anyone under 45, and it did not report a single peak year. Age 47 is not in the data.
- The study shows who reports loneliness. It does not prove why. Work, caregiving, and fewer shared routines are plausible explanations, not tested ones.
- Small, repeated contact is the practical lever, and the research on how people judge conversations suggests the first move costs less than it feels like it will.
If you are somewhere between 45 and 55 and you feel more alone than you did ten years ago, you are not imagining a trend. You are inside one. We need to be precise about it, though, because our earlier version of this article claimed more than the data can carry.
What the survey found
AARP Research surveyed 3,276 U.S. adults aged 45 and older between August 4 and 19, 2025, through Ipsos KnowledgePanel, an online panel. It measured loneliness with the UCLA Loneliness Scale. Overall, 40% of adults 45 and older scored as lonely. That is up from 35% in both 2010 and 2018, the two earlier rounds of the same survey.
The age pattern is the part people remember. Nearly half of adults aged 45 to 49 were lonely, and 45% of those in their 50s were. AARP reports that loneliness is highest at the younger end of the 45 and older group and tends to decrease with age.
What the survey did not find
Our earlier headline said 47 is the loneliest age in America. The survey does not support that. AARP reports ages in bands, so no single year stands out, and 47 appears nowhere in the AARP material we could open. The survey also starts at age 45. People in their 20s and 30s were not asked, so the data cannot say who is loneliest in the country. It can say who is loneliest among Americans 45 and older: the people at the youngest edge of that group.
A second correction concerns timing. We wrote that the pattern has held since 2010. AARP reports that the overall rate was 35% in both 2010 and 2018, but the pages we could open give an age breakdown for 2025 only, so we claim the age pattern for 2025 alone.
Why the late forties might be hard
One plausible explanation is the pressure of the 40s and 50s: work stress and caregiving. Many people in this range are raising teenagers and helping aging parents at the same time, with little room left for friends. That explanation fits what people describe, but it is an interpretation, not a finding from the survey. A one time survey cannot show that any of these demands cause loneliness, and it cannot separate age from the decade people were born in.
Two other findings in the report add context. In 2010, 44% of adults regularly attended religious services; in 2025, 36% did. AARP describes services as a repeated social activity that required no advance planning. And 59% of respondents agreed that communicating online instead of in person makes them feel lonelier. Treat that second number as a belief people hold, not a measured effect. It covers all respondents, not only the lonely ones.
The common thread is planning. Friendships that once ran on routine now run on calendars, and calendars are the first thing a full life crowds out.
Men and women
In 2025, 42% of men and 37% of women scored as lonely. AARP calls the gap a departure from previous results, which found men and women equally likely to be lonely. We previously wrote that this was the first time in survey history. AARP's wording is narrower, so we dropped the stronger claim. We also removed two figures about men and women having no close friends, because we could not match them to an AARP document we could open.
A routine does more than a resolution
If planning is the weak point, build a place that needs none. Sociologist Ray Oldenburg called these "third places": spots outside home and work, such as a cafe, a barbershop, a gym, or a dog park, where the same faces turn up again and again. Connection builds from repetition, not from a big effort.
The Great Good Place
Ray Oldenburg, sociologist · Berkshire Publishing Group, 2023 edition (first published 1989)
Evidence rating: LowThis book gives the clearest account of why repeated, unplanned contact matters, which is the gap the AARP religious attendance figure points to. It is a work of observation and argument, not a controlled study, so it shows no measured effect on loneliness. Skip it if you want data; read it if you want a framework for choosing where to spend your time.
The first message costs less than you think
Many people hold back from reaching out because they expect the other person to be lukewarm. Psychologists have tested that fear. In a 2018 paper in Psychological Science, Erica Boothby and colleagues studied conversations between strangers in a lab, between new college roommates, and among people meeting at a workshop. After talking, people consistently underestimated how much their partners liked them. Researchers call this the liking gap. It lasted for months as the relationships developed.
Keep the scope in mind. The study looked at conversations people were already having, not at cold messages to old friends. It suggests your private read on how a chat went runs more negative than the other person's. It does not guarantee that an old friend will answer.
What this means for you
The survey describes a group, not you. Being 47 and lonely does not mean something is wrong with you, and being 47 and not lonely does not mean you got lucky. The numbers say the pressures of midlife are common and that connection fades when it depends on spare time you do not have. So lower the cost of connection. Pick one recurring place and one recurring person, and let the habit do the work.
What to do this week
- Pick one third place, such as a particular coffee shop, gym class, or walking route, and go at the same time on two days.
- Send one short message to someone you have not contacted in a year. Name something specific you remember about them.
- Put a standing slot on your calendar, even thirty minutes every other week, for one friend. A fixed time removes the planning.
- Replace one stretch of scrolling with a phone call or a walk with a person.
Sources
- AARP Research. Disconnected: The Escalating Challenge of Loneliness Among Adults 45 Plus. 2025. doi.org/10.26419/res.00983.001
- AARP. AARP Survey: 40 Percent of Older Adults Are Lonely (age bands, gender, religious attendance, online communication). 2025. AARP survey summary page
- Boothby, E. J., Cooney, G., Sandstrom, G. M., and Clark, M. S. The liking gap in conversations: Do people like us more than we think? Psychological Science. 2018;29(11):1742 to 1756. doi.org/10.1177/0956797618783714
- Oldenburg R. The Great Good Place. Berkshire Publishing Group; 2023 edition. ISBN 9781614720973. blackwells.co.uk catalog record
Correction
Correction, October 2026: an earlier version of this article said that age 47 is the loneliest age in America. The source shows that among adults 45 and older, loneliness was highest at ages 45 to 49 (49%) and declined with age; the survey reports age bands, not single years, and did not include adults under 45. The earlier version also said the pattern held since 2010 (AARP's pages give an age breakdown for 2025 only), called the 2025 gap between men and women a first in survey history (AARP says earlier results showed men and women equally likely to be lonely), and gave figures on men and women with no close friends that we could not match to an AARP document. We have corrected the text.
