VERIFIED BRIEFINGUPDATED JUL 21, 20264 MIN READBY POOL REPORT RESEARCH DESK

Couples’ age gap statistics: what is actually typical?

Verified U.S. couple age-gap statistics, including same-age couples, average gaps in marriage, and partners ten or more years apart.

THE SHORT ANSWER

More than one-third of opposite-sex couples living together in 2025 had partners within one year of the same age; in 2022 opposite-sex marriages, the average gap was 2.2 years.

>⅓: were within one year in the 2025 CPS
2.2 years: average gap in 2022 opposite-sex marriages
51%: of 2022 marriages were within two years

Most couples are relatively close in age

The Census Bureau’s 2025 CPS comparison found more than one-third of opposite-sex co-residential couples had partners within one year of the same age. Pew’s analysis of 2022 ACS data found 51% of opposite-sex marriages had spouses no more than two years apart.

The thresholds differ—within one year versus within two—so the percentages should not be placed in the same chart as if they describe the same category.

The average marriage gap has narrowed

Pew calculated an average 2.2-year difference between husbands and wives in 2022, down from 2.4 years in 2000 and 4.9 years in 1880.

The analysis is limited to opposite-sex married couples who live together because both spouses’ ages must appear in the same household record.

An observed pattern is not a dating rule

Couple data show which relationships exist, not which age differences people should prefer. They also do not measure compatibility, relationship quality, or whether age caused an outcome.

The familiar ‘half your age plus seven’ formula is a social convention, not a Census or CDC standard. Descriptive data are more honest when presented without turning them into a prescription.

DATA

Compare the denominators.

Published U.S. couple age-gap benchmarks
Measure	Estimate	Population and year
Partners within one year	More than one-third	Opposite-sex co-residential couples, 2025 CPS
Spouses within two years	51%	Opposite-sex marriages, 2022 ACS
Spouses within two years	46%	Opposite-sex marriages, 2000
Average spousal age gap	2.2 years	Opposite-sex marriages, 2022
Average spousal age gap	2.4 years	Opposite-sex marriages, 2000
Average spousal age gap	4.9 years	Opposite-sex marriages, 1880

Reading rule: The one-year and two-year thresholds are not interchangeable; both sources require partners observed in the same household.

Download this table as CSV ↓

SOURCE RECEIPTS

Open the evidence.

These links go to the publisher—not a secondhand statistic roundup.

01
U.S. Census Bureau
Characteristics of Opposite-Sex Couples Who Lived Together in 2025
Current Population Survey ASEC estimates covering partners’ age, earnings, education, couple type, and children in the household.
Open source ↗
02
Pew Research Center
A Growing Share of U.S. Husbands and Wives Are Roughly the Same Age
Analysis of Census and ACS microdata for opposite-sex married couples living together, with historical comparisons.
Open source ↗

COMMON FOLLOW-UPS

What is the average age gap between married couples?

Pew’s analysis found husbands and wives in U.S. opposite-sex marriages were 2.2 years apart on average in 2022.

Are most couples close in age?

Yes by the published Census measures: more than a third of opposite-sex co-residential couples in 2025 were within one year, and 51% of opposite-sex marriages in 2022 were within two years.

Do these statistics include every couple?

No. The analyses cited here rely on couples living in the same household and, for the age-gap comparisons, focus on opposite-sex couples.