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The U.S. Census Bureau is the official source for U.S. export and import statistics and regulations governing the reporting of exports from the U.S.
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The Geographic Support System Initiative will integrate improved address coverage, spatial feature updates, and enhanced quality assessment and measurement.
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Definitions of geographic terms, why geographic areas are defined, and how the Census Bureau defines geographic areas.
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The Census Bureau's Director writes on how we measure America's people, places and economy.
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The Population Estimates Program produces quarterly native and foreign-born resident population estimates by age, sex, race, and Hispanic origin for the United States. These estimates cover the period from April 1, 1990 to July 1, 1999. Nativity estimates are revised annually back to the previous census date.
Please note that the definitions of native and foreign-born resident populations affect all comparisons made between the two populations. Foreign-born residents are those people born outside the United States to non-citizen parents, while native residents are those people born inside the United States or born abroad to United States citizen parents.
One notable difference between the two populations concern children. Any child born to foreign-born parents after entering the United States, by definition, becomes part of the native population. The foreign-born child population, therefore, is quite small, while the native child population (and the overall native population) are inflated by births to foreign-born parents after migrating to the United States.
Also note that Hispanics are classified as an ethnicity, not as a race. People of Hispanic origin, therefore, may be of any race. The racial and Hispanic origin classification used for the national nativity population estimates adheres to the guidelines in Federal Statistical Directive No. 15, issued by the Office of Management and Budget.
A descriptive methodology of the national nativity population estimates process, which includes a layout of the detailed national nativity estimates files. [TXT - 28k]
The ASCII text files below contain summary information about the foreign-born and native resident populations by age, sex, race, and Hispanic origin. Unless otherwise specified, all numbers in these tables are rounded to the nearest thousand.
These population estimate files contain quarterly national resident population estimates in the following detail: single year of age (0 to 100-plus), sex, race (White; Black; American Indian, Eskimo, and Aleut; Asian and Pacific Islander), and Hispanic origin. The files are in ASCII text format and do not contain headers. Layout of the detailed files. [TXT - 4k]
These files are compressed. They must be uncompressed before use. For information on using WINZIP and PKZIP/PKUNZIP see our PKZIP information page.