Years Available: 1980–1989
Permanent Link: http://data.sagepub.com/sagestats/4504
General Notes: *Median value gives the value for the "average" county for this metric, the 50th percentile of all counties reporting data. **The Population Estimates Program (PEP) includes two distinct kinds of estimates: postcensal and intercensal. Postcensal estimates adjust the population counts from previous censuses using administrative data. Intercensal estimates, on the other hand, use a formula to interpolate between two censuses. Therefore, there will only be an intercensal estimate for 2012 after the 2020 census is taken. Intercensal estimates are considered superior to postcensal estimates by the Census Bureau. With each new release of annual estimates, all estimates are revised for all years back to the last census. Hence, when the Census Bureau released 2012 population estimates, it also revised the estimates for 2010 and 2011. The estimates published in a particular year are its "Vintage, " so that the estimates for 2010-2012 published in 2012 are "Vintage 2012." Vintage 2012 used the National Center for Health Statistics (NCHS) to estimate births and deaths, the Internal Revenue Service (IRS) (for ages 0-64) and Medicare enrollment (for ages 65 and older) to estimate migration within the U.S., American Community Survey (ACS) data to estimate international migration, and the Defense ManpowerData Center (DMDC) to estimate military migration. See http://www.census.gov/popest/methodology/2012-est-relnotes.pdf for the slight improvements in methodology from previous years' estimates." Hispanic origin is considered an ethnicity, not a race. Hispanics may be of any race.