March of Dimes March of Dimes Peristats

Calculations

Population

Population data are shown for three major categories: total population, population of women 15-44 years of age, and total population of children less than 19 years. The data provided are from the following Census estimates; 1996 to 1999 are based on the 1990 Census, 2000 to 2009 are based on the 2000, and years 2010 and later are based on the 2010 Census. Distribution by race and race/ethnicity is also provided for total population, women 15-44 years and children less than 19 years, and by age for women 15-44 years. Beginning with the 2000 Census, race and ethnicity were reported according to standards published by the Office of Budget and Management, which were inconsistent with the reporting of race on vital records, including the birth certificate. In order to adjust for this, the Census Bureau released special population estimates that bridged the gap between these two sources of data. More information on this procedure and the data files can be found at the NCHS Web site.