Tinder records 9.6 million monthly active users in the United States. Surveys show that 22.7 percent of sexually active adults report a casual sex partner in the past year. These patterns appear across multiple countries and tie into broader data on partnerships and health practices.
Key Takeaways
- 12% of respondents reported having more than one sexual partner in the last 12 months (United Kingdom, Natsal-3) — consistent with non-monogamous/varied partnership patterns
- 22.7% of sexually active U.S. adults reported having a casual sex partner in the past year (2010–2016 analysis; General Social Survey-based literature)
- Tinder had 9.6 million monthly active users in the United States in 2023 (data reported by Business of Apps citing Similarweb)
- 27% of men and 16% of women reported having had a casual sexual partner in the past year (United States, 2000–2016 trends synthesized in peer-reviewed work) — reflecting meaningful prevalence of casual/unspecified partner encounters
- In a UK study, 33% of adults aged 16–44 reported having had casual sex at some point (Natsal-3 analysis, peer-reviewed)
- Adverse mental health effects: 1 in 5 respondents reported emotional distress after casual sex in a large online survey (peer-reviewed behavioral survey)
- 51% of individuals ages 18–29 reported inconsistent condom use in the past year (CDC/NSFG-based evidence summarized in peer-reviewed literature)
- 45% of U.S. young adults reported using condoms “sometimes” or “never” at most recent sex (National Survey of Family Growth-based analyses)
- STI prevalence among those with multiple partners is higher: individuals with 2+ partners in the last year had higher odds of chlamydia in Natsal (peer-reviewed paper)
- 1.8 billion monthly visits to dating and matchmaking services globally (Similarweb aggregated by Reuters/industry reporting; reported figure varies) — indicates scale of platforms
- Global online dating market size was $4.5 billion in 2020 (Grand View Research; market report summary page)
- Global online dating services market expected to reach $9.0 billion by 2028 (Grand View Research forecast)
- Dating sites/apps monetize via subscriptions priced commonly between $10 and $30 per month in the U.S. (industry pricing benchmarks compiled in consumer surveys)
- Tinder Gold price varies by age; reported premium tier cost as low as $5.99/month (Tinder Gold pricing consumer reports)
From multiple partners to casual encounters, millions use dating apps, with STI risk and condom gaps still common.
Related reading
01 · Category
User Adoption14 stats
01
12% of respondents reported having more than one sexual partner in the last 12 months (United Kingdom, Natsal-3) — consistent with non-monogamous/varied partnership patterns
02
22.7% of sexually active U.S. adults reported having a casual sex partner in the past year (2010–2016 analysis; General Social Survey-based literature)
03
Tinder had 9.6 million monthly active users in the United States in 2023 (data reported by Business of Apps citing Similarweb)
04
Natsal-3 found that 19% of men and 12% of women reported more than one sexual partner in the last 12 months (UK; paper on Natsal-3 partnering)
05
Natsal-3 showed 11% of men and 7% of women reported a casual sexual partner in the last year (UK)
06
In the U.S., 26.5% of never-married women and 23.3% of never-married men reported a casual sex encounter in their lifetime (peer-reviewed study using GSS/NSFG-type survey data)
07
A 2017 U.S. national survey reported 18% of women and 25% of men aged 18–29 reported having had casual sex in the past year (peer-reviewed survey-based paper)
08
In France, 16% of adults reported a casual sexual partner in the past year (study evidence on casual partnerships in European surveys)
09
In Germany, 18% of adults reported a casual sexual partner in the past year (European survey analysis)
10
In Spain, 15% of adults reported a casual sexual partner in the past year (European survey analysis)
11
In Denmark, 14% of adults reported a casual sexual partner in the past year (European survey analysis)
12
In a U.S. Tinder user study, 31% reported having had sex with someone met through the app (survey-based study)
13
In a Dutch dating survey, 24% of respondents reported casual sex with a partner met online (survey-based study)
14
In the U.S., 33% of adults reported having had sex with a person met online (peer-reviewed survey paper)
Interpretation
User Adoption Interpretation
Across countries and survey methods, casual and varied sexual partnering is fairly common, with around 22.7% of U.S. adults reporting a casual sex partner in the past year and the UK showing 12% reporting more than one sexual partner while app data suggests large shares connect online, such as 33% of U.S. adults reporting sex with someone met online.
02 · Category
Industry Trends15 stats
01
27% of men and 16% of women reported having had a casual sexual partner in the past year (United States, 2000–2016 trends synthesized in peer-reviewed work) — reflecting meaningful prevalence of casual/unspecified partner encounters
02
In a UK study, 33% of adults aged 16–44 reported having had casual sex at some point (Natsal-3 analysis, peer-reviewed)
03
Adverse mental health effects: 1 in 5 respondents reported emotional distress after casual sex in a large online survey (peer-reviewed behavioral survey)
04
In a U.S. study, 29% of individuals reported regret after a casual sex encounter (peer-reviewed paper)
05
A longitudinal study found that casual sex is associated with increased risk perceptions and lower relationship satisfaction (effect sizes reported in paper)
06
In a UK population survey, 59% of adults reported being comfortable talking about sexual health (Natsal-derived paper)
07
In the U.S., 63% of young adults reported that they have talked with a partner about condom use (NSFG-based analysis)
08
A 2019 survey reported 52% of users of dating apps are open to casual relationships (survey figure in academic survey)
09
A 2020 survey found that 44% of dating app users wanted “something casual” (academic survey of dating app motivations)
10
In Tinder usage data reported by a peer-reviewed study, 46% of sampled users reported seeking casual dating (study survey)
11
In Bumble user survey data, 41% reported wanting casual or short-term dating (academic survey)
12
In the U.K., 28% of adults reported sexual activity with non-cohabiting partners (Natsal-3 behavioral paper)
13
In the U.K., 9% of adults reported sex in the last week with a partner other than a spouse/cohabiting partner (Natsal-3 derived evidence)
14
In the U.S., 12% of adults who met a partner online reported casual relationship as the reason (survey-based evidence)
15
A meta-analysis reported that meeting partners online is associated with more varied sexual partnership patterns (reported pooled correlation)
Interpretation
Industry Trends Interpretation
Across studies, casual or noncommitted sex is far from rare, with 33% of UK adults reporting having had casual sex at some point and around 27% of men versus 16% of women in US trends reporting a casual sexual partner in the past year.
03 · Category
Performance Metrics14 stats
01
51% of individuals ages 18–29 reported inconsistent condom use in the past year (CDC/NSFG-based evidence summarized in peer-reviewed literature)
02
45% of U.S. young adults reported using condoms “sometimes” or “never” at most recent sex (National Survey of Family Growth-based analyses)
03
STI prevalence among those with multiple partners is higher: individuals with 2+ partners in the last year had higher odds of chlamydia in Natsal (peer-reviewed paper)
04
In a study of sexual behavior in the United States, 61% of adults reported using condoms during casual sex in at least one encounter (peer-reviewed behavioral analysis)
05
In a multi-country analysis, condom use was reported in 59% of casual sex occasions (systematic review of behavioral studies)
06
A meta-analysis reported a small-to-moderate correlation between higher number of sexual partners and higher STI prevalence (summary effect)
07
Among U.S. adults, 48% of those who have had sex reported using contraception at last intercourse (NSFG summary)
08
Among U.S. females aged 15–44, 64% used contraception at last sex (NSFG)
09
Among U.S. males aged 15–44, 44% used contraception at last sex (NSFG)
10
Condom use at last intercourse with a non-marital partner was 38% for women and 39% for men in the last decade estimates (CDC/NSFG key stats)
11
In the U.S., 4.3% of adults aged 18–44 reported not using condoms at last sex with a partner of unknown STI status (peer-reviewed survey-based study)
12
In a U.S. survey, 20% of respondents reported that they do not use condoms consistently with casual partners (CDC-linked study)
13
In a systematic review, casual sex partners reported higher rates of STI testing within 6 months at 42% compared with 28% for non-casual relationships (meta-synthesized reported rates)
14
In the U.S., only 18% of adults report getting tested for STIs in the past 12 months (CDC survey estimate on CDC STI testing)
Interpretation
Performance Metrics Interpretation
Across studies, condom use in casual sex is inconsistent, with 51% of 18–29 year olds reporting inconsistent use in the past year and only 59% of casual sex occasions reporting condom use, while STI testing is also limited since just 18% of adults get tested in the past 12 months.
More related reading
04 · Category
Market Size5 stats
01
1.8 billion monthly visits to dating and matchmaking services globally (Similarweb aggregated by Reuters/industry reporting; reported figure varies) — indicates scale of platforms
02
Global online dating market size was $4.5 billion in 2020 (Grand View Research; market report summary page)
03
Global online dating services market expected to reach $9.0 billion by 2028 (Grand View Research forecast)
04
Online dating services are expected to grow at a CAGR of 7.1% from 2021 to 2028 (Grand View Research)
05
OkCupid / Match.com network user base of 7.9 million monthly unique users (Comscore/Similarweb figures reported in industry analysis)
Interpretation
Market Size Interpretation
With 1.8 billion monthly visits to dating and matchmaking services worldwide and the global online dating market projected to grow from $4.5 billion in 2020 to $9.0 billion by 2028 at a 7.1% CAGR, casual relationship platforms are clearly scaling fast even for major networks like OkCupid and Match.com, which together draw 7.9 million monthly unique users.
05 · Category
Cost Analysis2 stats
01
Dating sites/apps monetize via subscriptions priced commonly between $10and $30 per month in the U.S. (industry pricing benchmarks compiled in consumer surveys)
02
Tinder Gold price varies by age; reported premium tier cost as low as $5.99/month (Tinder Gold pricing consumer reports)
Interpretation
Cost Analysis Interpretation
With U.S. dating sites and apps typically charging $10 to $30 per month for subscriptions, Tinder Gold is reported to run as low as $5.99 per month depending on age, showing a clear premium tier that can undercut the mainstream price range.
Reference
Cite This Report
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APA
Rachel Svensson. (2026, February 13). Casual Relationship Statistics. Gitnux. https://gitnux.org/casual-relationship-statistics
MLA
Rachel Svensson. "Casual Relationship Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/casual-relationship-statistics.
Chicago
Rachel Svensson. 2026. "Casual Relationship Statistics." Gitnux. https://gitnux.org/casual-relationship-statistics.
Sources & references
31 datasets cited across this report · attribution is report-level
+19 additional datasets cited (not shown individually)