July 1, 2007 Metropolitan and Micropolitan Statistical Area Population Estimates
"The Population Estimates Program publishes total resident population estimates and demographic components of change (births, deaths, and migration) each year. We also publish the estimates by demographic characteristics (age, sex, race, and Hispanic origin) for the nation, states and counties. In addition to the resident population universe, we also produce population estimates for these universes: resident plus armed forces overseas, civilian, and civilian non-institutional at the national level; and civilian at the state level. The reference date for estimates is July 1."