Published ACS B12504 median years in the current marriage among people now married or separated.

This is a cross-sectional measure of ongoing marriages, not the eventual duration of all marriages. Previously dissolved marriages are not included in this current-marriage measure.

Measure definition and provenance Unit, denominator, population and source terms
Unit
person
Universe
Population 15 years and over who are now married or separated
Denominator
Not a rate; median duration in years
Geography basis
residence
Product
ACS 1-year
Reference period
current marriage as of survey response
Source & terms
U.S. Census Bureau — American Community Survey · U.S. federal statistical data; source attribution and no endorsement

Median duration of current marriage

United States

Duration in years; ACS 1-year estimates

Median duration of current marriage, United StatesTrend from 2021 to 2024. Exact values and source notes are in the table below. Whiskers show 90% margins of error when available.181920212220212022202320242021: 20.0 ± 0.202022: 20.0 ± 0.102023: 20.0 ± 0.102024: 20.0 ± 0.10
Source: U.S. Census Bureau — American Community Survey. 2021–2024. 90% margins of error shown. Definitions & data
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View data table and reporting notes
Population 15 years and over who are now married or separated. Not a rate; median duration in years. Source: U.S. Census Bureau — American Community Survey.
YearMedian duration of current marriageNotes
202120.0 ± 0.20—
202220.0 ± 0.10—
202320.0 ± 0.10—
202420.0 ± 0.10—

Download this release

208 observations, including explicitly missing records. CSV retains scope and attribution; JSON includes calculation inputs and flags.

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Source: U.S. Census Bureau, ACS 1-year estimates. Calculations identified as CouplesData.

Interpretation and revisions

This is a cross-sectional measure of ongoing marriages, not the eventual duration of all marriages. Previously dissolved marriages are not included in this current-marriage measure.

MOEs use 90% confidence. Derived proportions use Census approximation formulas; national medians are imported directly, not calculated from states.

Initial publication: October 1, 2026. Corrections log. Review was assisted by automation and is not an independent expert review.