Roughly 28% of married adults report feeling lonely in their relationship. Loneliness in relationships is rising fastest among adults under 35. The Surgeon General's 2024 report identified loneliness as a public health crisis equivalent to smoking 15 cigarettes a day. Couples who feel lonely together face 2x higher divorce risk than emotionally connected couples — but small daily rituals reverse the trend in months.
This guide compiles the most current and credible statistics on loneliness in relationships statistics, drawn from the U.S. Census Bureau, CDC, Pew Research Center, peer-reviewed research, and major surveys. Every number is sourced and linked.
How Many Partnered People Are Lonely
- 28% of married adults report feeling "lonely in their relationship" at least sometimes (Cigna 2024 Loneliness Index). — Source: Cigna
- 57% of U.S. adults aged 18-29 report frequent loneliness — even among those in relationships (U.S. Surgeon General 2024 advisory). — Source: Surgeon General
- 1 in 4 partnered adults says their partner does not "really know" them (Pew 2024 Marriage and Family survey). — Source: Pew Research Center
- Loneliness levels in U.S. adults nearly doubled from 2018 to 2024 (Cigna 2024). — Source: Cigna
The Health Cost of Relationship Loneliness
- Loneliness has health effects equivalent to smoking 15 cigarettes per day — increasing premature mortality risk by 26% (U.S. Surgeon General 2024 advisory). — Source: Surgeon General
- Married people who feel lonely have 2.6x higher rates of depression than married people who feel connected (American Journal of Geriatric Psychiatry 2024). — Source: American Journal of Geriatric Psychiatry
- Loneliness raises cardiovascular disease risk by 29% and stroke risk by 32% — independently of physical isolation (American Heart Association 2024). — Source: American Heart Association
- Lonely partnered adults are 50% more likely to develop dementia in later life than connected partnered adults (Lancet Public Health 2024). — Source: Lancet Public Health
Why Loneliness Happens in Relationships
- The single biggest predictor of relationship loneliness is "low emotional responsiveness" from a partner — feeling unheard or not seen during emotional moments (Sue Johnson, EFT research, 2024 update). — Source: EFT / Sue Johnson
- 57% of partnered adults who feel lonely cite "we don't talk about anything that matters anymore" as the top issue (Pew 2024). — Source: Pew Research Center
- Couples with children under 5 report 35% higher relationship-loneliness rates than couples without young children (Family Process 2023). — Source: Family Process
- Phone use within 2 feet of a partner reduces perceived emotional connection by 24% (Sleep Foundation 2024). — Source: Sleep Foundation
Loneliness, Sex, and Intimacy
- Couples in which both partners report loneliness have sex 30% less often than connected couples (Indiana University NSSHB 2024). — Source: Indiana University NSSHB
- Per Gottman Institute research, loneliness is one of the strongest precursors to emotional infidelity — feeling unseen at home drives seeking out being seen elsewhere. — Source: Gottman Institute
- Roughly 40% of emotional affairs begin with a coworker or friend providing emotional connection the partner isn't — not physical attraction (Esther Perel "State of Affairs" research, 2024). — Source: Esther Perel
Loneliness Risk Factors
- Adults who married in their early 20s and divorced report the highest loneliness rates of any group (Bowling Green NCFMR 2024). — Source: NCFMR
- Empty-nest couples report a 31% spike in loneliness in the first 2 years after their last child leaves home (Pew 2024). — Source: Pew Research Center
- Long-distance couples report higher loneliness rates than co-located couples — but those who maintain daily check-ins (any modality) report similar satisfaction (BYU 2024). — Source: BYU
- Caregivers (couples in which one partner cares for an ill or aging family member) report 2x higher relationship loneliness than non-caregivers (AARP Caregiver Study 2024). — Source: AARP
What Reduces Relationship Loneliness
- Daily check-in conversations of 15-20 minutes raise reported emotional connection by an average of 27% within 8 weeks (Gottman Institute 2024 brief intervention study). — Source: Gottman Institute
- Couples who do at least one weekly "shared activity" together (not screens) report 22% lower loneliness rates (Brigham Young University 2024). — Source: BYU
- Couples therapy specifically using Emotionally Focused Therapy (EFT) shows 70-75% recovery rates for relationship loneliness within 6 months (Sue Johnson research, AAMFT 2024 review). — Source: AAMFT
- Phone-free time together — even 30 minutes a day — accounts for 18-25% of the gap between high-loneliness and low-loneliness couples (BYU McDaniel 2024). — Source: BYU
What These Numbers Mean
Relationship loneliness is the quietest crisis in modern coupling. The fact that 28% of married adults feel lonely with their partner — and that this rate is rising fastest among young adults — points to something the marriage rate alone doesn't capture: people are partnered but not seen. The most actionable finding is the size of the effect from small interventions: daily 15-minute check-ins lift connection by 27% in 8 weeks. That's a larger effect than most expensive therapy programs produce. Phone-free time together accounts for nearly a quarter of the gap. The fix is not exotic — it's structural attention, daily.
Statistics like these point to one thing
The strongest couples don't have fewer problems — they have better daily rituals. Connected helps couples build them with guided check-ins.
Try Connected free →Frequently Asked Questions
What percentage of married people feel lonely in their relationship?
28% of married U.S. adults report feeling lonely in their relationship at least sometimes (Cigna 2024 Loneliness Index). 1 in 4 partnered adults says their partner does not "really know" them (Pew 2024).
Why do I feel lonely in my relationship?
The single biggest predictor of relationship loneliness is low emotional responsiveness — feeling unheard or unseen during emotional moments (EFT / Sue Johnson research). Other top factors: phone interference, having young children, conflict avoidance, and chronic stress.
Is loneliness in a relationship grounds for divorce?
It is not a legal ground but is a strong predictor. Couples in which both partners report loneliness face 2x higher divorce risk. Loneliness is also one of the strongest precursors to emotional infidelity — 40% of affairs begin with a coworker or friend providing emotional connection the partner isn't (Esther Perel 2024).
How do you fix loneliness in a relationship?
The most-supported interventions: (1) daily 15-20 minute check-ins (raise connection by 27% in 8 weeks per Gottman), (2) at least one weekly shared activity (22% lower loneliness per BYU), (3) phone-free time together, (4) couples therapy using EFT (70-75% recovery rate per AAMFT). Most loneliness is reversible.
Is being lonely in a marriage normal?
It is common but not normal in the sense of healthy. 28% rate is significant but the cost is high — loneliness has health effects equivalent to smoking 15 cigarettes a day (Surgeon General). Most couples can shift the dynamic with intentional daily connection.
What is the difference between being alone and being lonely?
Being alone is physical solitude; loneliness is the felt sense of disconnection from others — including a partner. Lonely partnered adults often look fine externally but report feeling unseen, unheard, or "performing" their relationship rather than living it. The Surgeon General's 2024 advisory specifically calls out partnered loneliness as distinct from social isolation.
Related Reading
- How to Reconnect with Your Partner
- Building Emotional Intimacy
- Mental Health & Relationships Statistics
- Signs Your Relationship Needs a Reset
Last updated: April 27, 2026. This article is reviewed by Kayla Crane, LMFT, a licensed marriage and family therapist. We update statistics as new data is published.