---
language:
- en
pretty_name: 'NCHS - Percent Distribution of Births to Unmarried Women by Age Group:
  United States'
tags:
- hhs
- cdc
- age
- births
- nchs
- nonmarital
---

# NCHS - Percent Distribution of Births to Unmarried Women by Age Group: United States

## Description

This dataset includes percent distribution of births to unmarried women by age group in the United States since 1970.

Methods for collecting information on marital status changed over the reporting period and have been documented in:

• Ventura SJ, Bachrach CA. Nonmarital childbearing in the United States, 1940–99. National vital statistics reports; vol 48 no 16. Hyattsville, Maryland: National Center for Health Statistics. 2000. Available from: http://www.cdc.gov/nchs/data/nvsr/nvsr48/nvs48_16.pdf.
• National Center for Health Statistics. User guide to the 2013 natality public use file. Hyattsville, Maryland: National Center for Health Statistics. 2014. Available from: http://www.cdc.gov/nchs/data_access/VitalStatsOnline.htm.

## Dataset Details

- **Publisher**: Centers for Disease Control and Prevention
- **Temporal Coverage**: 1970/2015
- **Geographic Coverage**: United States
- **Last Modified**: 2025-04-21
- **Contact**: National Center for Health Statistics (births@cdc.gov)

## Source

Original data can be found at: https://www.cdc.gov/nchs/data_access/vitalstatsonline.htm

## Usage

You can load this dataset using:

```python
from datasets import load_dataset
 dataset = load_dataset('HHS-Official/nchs-percent-distribution-of-births-to-unmarried-w')
```
## License

This dataset is licensed under https://www.usa.gov/government-works