A quick view of the data
Relationship statistics describe broad populations and research studies. They cannot predict what will happen in any one relationship, but they can add useful context to conversations about care, commitment, and change.
5.1
marriages per 1,000 Illinois residents
Illinois recorded a marriage rate of 5.1 per 1,000 residents in 2023.
Source: CDC, 2026 ↗1.2
divorces per 1,000 Illinois residents
Illinois recorded a divorce rate of 1.2 per 1,000 residents in 2023.
Source: CDC, 2026 ↗2,041,926
marriages in the United States
The CDC's provisional count for 2023 was 2,041,926 marriages nationwide.
Source: CDC, 2025 ↗672,502
divorces in 45 reporting states and D.C.
The CDC's provisional 2023 count covers 45 reporting states and the District of Columbia.
Source: CDC, 2025 ↗60–80%
of distressed couples benefited in reviewed studies
A 2020 review found this range for behavioral and emotion-focused approaches, while noting that results can be weaker in everyday practice and may fade for some couples.
Source: Bradbury & Bodenmann, 2020 ↗20.6 years
median current marriage duration for opposite-sex married couples
The U.S. Census Bureau reported this median in its 2022 American Community Survey analysis.
Source: U.S. Census Bureau, 2024 ↗How to read these figures
Rates make it easier to compare populations of different sizes. A marriage or divorce rate is not a percentage of couples, and the CDC's national divorce count does not include every state. Research on couples therapy reflects study populations and specific approaches, not a guarantee of a particular outcome.
Methodology & sources
Where these numbers come from
This page uses government data and peer-reviewed research. Each statistic is linked to its source, with the source year shown alongside it. We review this reference roughly monthly and update it when a key source publishes newer data.
- CDC, Illinois: Stats of the States (2026)Illinois marriage and divorce rates for 2023.
- CDC, FastStats: Marriage and Divorce (2025)U.S. provisional marriage and divorce counts and rates for 2023.
- Bradbury & Bodenmann, Annual Review of Clinical Psychology (2020)Review of meta-analytic evidence on interventions for couples.
- U.S. Census Bureau, Spouses in Opposite-Sex and Same-Sex Married Couples and Their Households (2024)2022 American Community Survey findings on current marriage duration.
Cite this page
The Caruso Wellness Center, PLLC. “Marriage, Divorce, and Couples Therapy Statistics.” Updated September 25, 2026. https://chicagocoupletherapy.com/relationship-statistics
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