Vital statistics data

• Birth certificate, death certificate, report of fetal death, and infant birth/death linked files are obtained from the National Center for Health Statistics (NCHS).

Reference: CDC, National Center for Health Statistics, Division of Vital Statistics, National Vital Statistics System

For more information about how vital records are collected and reported by NCHS please refer to the National Vital Statistics System Web site:

http://www.cdc.gov/nchs/nvss.htm

Population data

• Postcensal population estimates are obtained from the US Census bureau. The reference date for county population estimates is July 1.

Reference: U.S. Bureau of the Census, United States population estimates, by age, sex, race, and Hispanic origin: 1995–1999.  Washington: U.S. Department of Commerce.

For more information about how the US Census develops postcensal estimates please refer to the US Census Web site: http://www.census.gov/popest/estimates.php

Page last reviewed: 7/28/08
Page last modified: 1/29/07
Content source: Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion