These estimates have been developed by applying a mathematical formula to take into account differences between the postcensal time series population estimates and the 1990 and Census 2000 results.
The Population Estimates Program produces monthly national population estimates by age, sex, race, and Hispanic origin for the United States. These estimates cover four different populations: resident population, resident population plus Armed Forces overseas, civilian population, and civilian noninstitutional population. All reference dates in the monthly national estimates refer to the first of the month.
NOTE: All population figures for the year 2000 shown here (including April 1, 2000) are based on the 1990 Census; they do not reflect Census 2000 counts.