Marriage Rates Decline: Why Millennials and Gen Z Are Marrying Less
by admin · April 30, 2025 · 13 min read
When people say “young adults aren’t marrying anymore,” they’re usually compressing several different trends into one headline: marriage is happening later; a larger share of relationships is unfolding outside marriage (especially cohabitation); and the path from dating to a stable household has become more economically and logistically demanding. For Millennials and Gen Z, marriage has moved from being an early “starter step” into a later “capstone” that often comes after education, career stability, and housing.
That shift doesn’t automatically imply less desire for long-term partnership. It often reflects a different risk calculus: when income is uncertain, housing is expensive, and family formation is tied to big fixed costs, delaying formal commitment can feel like the safer choice. At the same time, cultural norms have changed. Living together, sharing expenses, and building a life before marriage is widely accepted, which removes the old urgency to marry as a prerequisite for co-residence.
What changed in plain terms
- Marriage is later. In the U.S., recent estimates place the median age at first marriage at about 30.2 for men and 28.4 for women, reflecting a long-run shift in timing.
- The “default sequence” flipped. For many couples, cohabitation and shared households now precede marriage rather than follow it.
- Rates reflect both behavior and age structure. Gen Z is still young as a cohort; lower marriage rates partly reflect fewer people being in typical first-marriage ages at the moment.
- Big shocks distort short-run numbers. The pandemic reshuffled weddings and paperwork, creating unusual dips and rebounds that don’t fully represent long-run patterns.
Many couples treat marriage as a signal that finances, housing, and long-term plans are aligned—so delays often track delayed stability rather than reduced attachment.
Housing down payments, student debt, and childcare costs can turn marriage into a decision bundled with high-stakes budgeting—especially in high-cost metros.
People can cohabit and build family-like lives without legal marriage; benefits, taxes, and workplace policies often still assume marriage is the default unit.
Why Millennials and Gen Z are marrying less (or later)
The drivers are cumulative: economics, education-to-career timing, and housing constraints reinforce each other and push marriage later for many couples. A single factor rarely explains the decision for one relationship, but several forces move in the same direction across a population.
Marriage is emotional, but it’s also a legal and financial merger. When job stability is uneven and benefits are inconsistent, couples may delay formalizing the partnership until they feel resilient against shocks—medical bills, layoffs, rent increases, or caregiving demands. The relationship can be committed, but the timing feels premature.
More years in education, later entry into stable careers, and higher geographic mobility push relationship milestones outward. For many, the 20s are a period of credentialing, relocation, and early-career volatility. Marriage often arrives after cohabitation has already tested the partnership through moves and job changes.
The traditional path—move out, set up a home, then marry—assumed attainable rent and ownership. In expensive markets, couples can be “relationship-ready” but “housing-stuck.” Co-residing with parents longer, living with roommates later into adulthood, or prioritizing savings can all delay the moment marriage feels practical.
In earlier decades, marriage functioned as a gateway to living together and social legitimacy. Today, couples can cohabit, share finances, and raise children without marrying—often with broad social acceptance. When the penalty for waiting shrinks, the average age rises.
On top of these structural constraints, expectations around household labor, caregiving, and long-term fairness also shape whether people feel ready to formalize a union. If partners anticipate unequal domestic work or worry that marriage will lock in an arrangement that feels unfair, they may postpone. Likewise, people who have witnessed unstable relationships around them may treat marriage as something to enter only when it feels exceptionally robust.
Methodology: what “marriage rates decline” actually measures
“Marriage rate” can mean different things in different datasets. A widely used public-health measure is the crude marriage rate: the number of marriages per 1,000 total population in a year. This is useful for long-run trend tracking, but it is sensitive to the age structure of the population (a country with fewer people in typical marrying ages can show a lower crude rate even if behavior among those “at risk” is similar).
Survey-based demography often uses an adjusted marriage rate (for example, the number of women who married in the last year per 1,000 women age 15+, or per 1,000 unmarried women). These can be more comparable for “who is likely to marry,” but they depend on survey design and sampling.
In this article, the U.S. time series in Part 2 uses official vital statistics for crude rates (marriages per 1,000 total population) and the same source’s divorce rate series for context. Complementary evidence from household surveys helps explain why you may see different levels across sources.
Limitations to keep in mind: (1) marriage is only one form of partnership—cohabitation and long-term non-marital unions are not counted; (2) a cohort’s “eventual marriage” can’t be inferred from a single year of rates; (3) short-run shocks (pandemic restrictions, reporting lags) can temporarily distort annual totals; (4) international comparisons vary in registration practices and definitions across statistical agencies.
Insights: what the decline suggests about society and opportunity
A crucial distinction is whether the change reflects delay, substitution toward cohabitation, or a lasting drop in eventual marriage—these are different mechanisms with different implications. The most consistent pattern across many studies is that marriage is increasingly stratified by economic security: stable marriage tends to be concentrated among adults with steady employment, predictable schedules, and access to benefits. That creates a feedback loop: marriage becomes a signal of stability, and stability becomes a prerequisite for marriage.
The decline also highlights an institutional mismatch. Benefits, taxes, and healthcare access often assume marriage is the default household unit. When people delay marriage but still form “marriage-like” households, policy gaps can show up around caregiving, parental leave, and protections for partners who are not legally recognized.
Internationally, marriage rates have also trended downward across many high-income countries, though the level and speed vary with housing costs, labor-market security, and how common cohabitation is in each society. Short-run shocks (like 2020) can distort year-to-year comparisons, which is why multi-year trends matter more than single-year changes.
What this means for readers
If you’re deciding whether (or when) to marry, it helps to separate population trends from personal choices. Trends describe averages; they don’t prescribe what is “right.” What they do suggest is that couples increasingly treat marriage as a legal tool used when a shared life has reached a certain level of complexity: shared assets, children, health insurance decisions, relocation planning, and caregiving responsibilities.
A practical way to think about the decision is to ask: what problem would marriage solve for us—and what problem might it create? In some cases, marriage simplifies next-of-kin rights, reduces uncertainty in emergencies, and clarifies inheritance or parental responsibilities. In other cases, people prefer to formalize parts of their life through contracts or agreements before legal marriage.
A useful rule: treat marriage as one component of a broader household plan (finances, housing, caregiving, and values), not as a single symbolic event. That mindset fits the reality of modern adulthood: longer timelines, more career changes, and higher stakes around housing and childcare.
FAQ: questions people actually ask
Is marriage really “dying,” or is it just happening later?
Mostly later. Annual rates are lower than decades ago, but timing matters: if first marriages shift from early 20s to late 20s or early 30s, the share married at age 25 will fall even if many still marry by 35. That’s why it’s important to distinguish “period rates” (this year) from “cohort outcomes” (eventual patterns across a lifetime).
Why do Millennials look so different from Boomers at the same age?
Because the timing of adulthood shifted. More years in education, later career stabilization, higher housing costs, and more geographic mobility push major milestones out. Also, cohabitation is widely accepted, so marriage is no longer the default “first step” into a shared household.
Is Gen Z “anti-marriage”?
It’s too early to treat current Gen Z marriage levels as a final outcome because much of Gen Z is still below prime first-marriage ages. What looks like rejection often reflects delay: education, early-career instability, and the affordability barrier for housing and family formation.
What role do weddings and social media play?
They can raise perceived costs and expectations. Even couples who want a simple legal marriage may feel pressure to meet a “wedding standard,” which can delay timing. The key distinction is that weddings are a cultural event, while marriage is a legal status—people often delay the former even when they want the latter.
Does living together reduce the incentive to marry?
It changes the sequence more than the intent. Cohabitation lets couples share a life, test compatibility, and pool resources without formalizing the legal relationship immediately. For many, marriage comes later as a “capstone” once finances, housing, or plans for children feel stable.
Are economic factors really that important?
Yes, because marriage often coincides with bigger shared commitments: housing, children, caregiving, insurance decisions, and asset building. When those commitments feel risky or unaffordable, couples delay legal marriage even if the relationship is stable.
What’s the biggest misconception about the decline?
That it proves people no longer value commitment. In reality, commitment often exists without marriage through cohabitation and long-term partnerships; what shifted is the timing and the threshold for “readiness,” especially where housing and household costs are high.
U.S. marriage rate fell from early-2000s levels and was disrupted by the pandemic
The official vital statistics series shows a long-run drift downward in the crude marriage rate (marriages per 1,000 total population), from 8.2 in 2000 to around the low-6 range in the early 2020s, with a sharp dip to 5.1 in 2020 during the first pandemic year. That break reflects real-world constraints on ceremonies and administration, and it also reshuffled timing as some weddings moved into later years.
| Year | Marriage rate (per 1,000) |
Divorce rate (per 1,000) |
Context note |
|---|---|---|---|
| 2023 | 6.1 | 2.4 | Provisional vital statistics. |
| 2022 | 6.2 | 2.4 | Post-pandemic scheduling normalization continues. |
| 2021 | 6.0 | 2.5 | Rebound from 2020 disruptions. |
| 2020 | 5.1 | 2.3 | Pandemic year: ceremonies, travel, and administration disrupted. |
| 2019 | 6.1 | 2.7 | Pre-pandemic baseline. |
| 2018 | 6.5 | 2.9 | Downtrend vs early 2000s persists. |
| 2017 | 6.9 | 2.9 | Marriage rate below 7. |
| 2016 | 7.0 | 3.0 | Near 7.0 before further decline. |
| 2015 | 6.9 | 3.1 | Stable-to-downward period. |
| 2014 | 6.9 | 3.2 | Divorce coverage varies by state in some years. |
| 2013 | 6.8 | 3.3 | Marriage rate ~6.8. |
| 2012 | 6.8 | 3.4 | Survey-based measures can differ from vital statistics. |
| 2011 | 6.8 | 3.6 | Divorce rate higher than today’s levels. |
| 2010 | 6.8 | 3.6 | Post–Great Recession era. |
| 2009 | 6.8 | 3.5 | Economic stress period. |
| 2008 | 7.1 | 3.5 | Pre–Great Recession transition. |
| 2007 | 7.3 | 3.6 | Still above 7. |
| 2006 | 7.5 | 3.7 | Higher baseline than the 2010s. |
| 2005 | 7.6 | 3.6 | Mid-2000s plateau. |
| 2004 | 7.8 | 3.7 | Crude marriage rate well above today’s level. |
| 2003 | 7.7 | 3.8 | Divorce rates near 4 per 1,000. |
| 2002 | 8.0 | 3.9 | Marriage rate around 8. |
| 2001 | 8.2 | 4.0 | Early-2000s high. |
| 2000 | 8.2 | 4.0 | Baseline year for change view. |
Source: U.S. vital statistics (CDC/NCHS, National Vital Statistics System) — provisional 2023 series. Divorce figures in the provisional series reflect reporting states plus D.C.; coverage can vary by year, so interpret the divorce line primarily as a trend indicator.
Reading the trend: the long-run decline is gradual rather than abrupt. The 2020 dip is the clearest event shock, while post-2020 values stabilize around the low-6 range for marriages in this series.
Interpretation: fewer marriages doesn’t automatically mean less partnership
The decline in marriage rates is often framed as a cultural rupture. A more accurate reading is that the institution is being used differently. For many Millennials, marriage shifted from a “starting point” into a “stabilizing point.” For Gen Z, the visible pattern today is largely a timing story: many are still moving through education, early careers, and the high-mobility years when relationship milestones naturally arrive later.
The core change is not simply whether people want long-term commitment, but when they think legal marriage makes sense—and what alternative arrangements can do in the meantime. Cohabitation and long-term partnerships can provide companionship and shared living without a formal merger of assets and obligations. For some couples, that reduces risk while life plans are still moving.
What replaced the old “marry first” script
Living together has become a common step before marriage. It functions as a test of day-to-day compatibility—division of labor, finances, conflict styles—and it also reflects economics: combining households can help with rent, commuting, and caregiving.
Many couples build durable partnerships with shared plans, shared routines, and shared budgets without marrying immediately. The relationship is not casual; it’s simply not legally formalized yet. That matters for interpretation: some “missing marriages” are better described as “later marriages.”
Decisions often arrive as a bundle: marriage, housing, and children move together. When housing and childcare are expensive, the bundle moves later. In high-cost regions, this can create a long gap between partnership formation and marriage—even when people value marriage.
The implication is that “marriage” is increasingly one tool among many to structure adult life. That’s why statistics require context: a lower marriage rate can reflect fewer weddings, later weddings, more cohabitation, or some combination—and those have different social and policy consequences.
Policy takeaways: what would make stable unions easier to choose
Policy cannot manufacture relationships, but it can reduce the structural risks that make long-term planning feel fragile. The practical goal is not to force marriage, but to make stable household formation—married or not—more feasible.
- Housing affordability and supply reduce the “we can’t start life yet” bottleneck that delays household formation.
- Childcare affordability and predictable family benefits reduce the risk that one partner must exit the workforce unexpectedly.
- Portable benefits and stable scheduling help couples plan; volatility is a quiet driver of delayed milestones.
- Clear legal options for non-marital households (where applicable) reduce uncertainty around emergencies, caregiving, and shared property.
The trend is a system outcome: education timing, labor markets, housing, and norms interact. When stability is harder to reach, marriage tends to shift later—because many people treat it as a marker of stability rather than a path to it.
Sources
| CDC/NCHS FastStats: Marriage and Divorce | Headline U.S. counts and rates with links to official vital statistics series. | Baseline public reference for national marriage and divorce measures. | Vital statistics focus; cohabitation not counted. |
| CDC/NCHS: National marriage and divorce rates (2000–2023) | Year-by-year crude marriage rate and divorce rate used for the Part 2 table and chart. | Consistent time series for trend interpretation across two decades. | Divorce coverage varies; treat as trend indicator. |
| U.S. Census Bureau: Marriage and divorce rates (ACS) | Survey-based marriage/divorce indicators and state comparisons (ACS). | Complements vital statistics and highlights definitional differences. | Survey design differs from registration data. |
| NCFMR (BGSU): Median age at first marriage | Median age estimates for first marriage and recent changes over time. | Supports the “timing shift” interpretation central to the article. | Focused on timing rather than annual rates. |
| Pew Research Center: Millennials and young adulthood | Generational comparisons on marriage, household formation, and adulthood milestones. | Context for cohort differences and shifting sequences. | Analysis-oriented synthesis using multiple sources. |
| OECD Family Database: Marriage and divorce rates | Cross-national context on marriage/divorce rates across OECD countries. | Shows how trends vary internationally and why single-year comparisons can mislead. | Definitions can differ across national statistical systems. |
Note: crude marriage rates are sensitive to age structure and do not capture cohabitation.
