Family Structure Index | 2025
How strong are families in the US?
Hover state number to reveal stats
What is the Family Structure Index?
The Family Structure Index is a measure of the most important family structure trends in the US, focusing on each state’s share of adult residents who are married, have children, and raise those children together through their high-school years.
How was the Index Calculated?
The index was calculated for each state by:
- the percentage of married adults aged 25 to 54,
- the average number of lifetime births per woman, and
- the percentage of children aged 15 to 17 who are living with their married parents.
What Does the Index Score Mean?
Index scores higher than 60 indicate that the state is above the national average in at least one of the components. Index scores lower than 60 mean the state is below average in at least one area.
