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The [[United States Census Bureau]] uses the federal government's definitions of [[race]] when performing a [[census]].  These definitions have and may change between each census.  

The racial categories are officially described as follows:�
:''The categories represent a social-political construct designed for collecting data on the race and ethnicity of broad population groups in this country, and are not anthropologically or scientifically based.''

Racial classification in the [[2000]] census was based solely on self-identification and, for the first time, did not pre-suppose disjointness:
:''The question on race asked respondents to report the race or races they considered themselves to be. Both questions are based on self-identification.''

Nearly seven million Americans identified themselves as members of
more than one race in the 2000 census.

For the [[2000]] census the Census Bureau considers race to be separate from [[Hispanic]] origin.

Because of changes to definitions, the Census Bureau issued the following warning:
:''The question on race for Census 2000 was different from the one for the 1990 census in several ways. Most significantly, respondents were given the option of selecting one or more race categories to indicate their racial identities. Because of these changes, the Census 2000 data on race are not directly comparable with data from the 1990 census or earlier censuses. Caution must be used when interpreting changes in the racial composition of the U.S. population over time.''

== Definitions ==
The following definitions apply to the 2000 census only.
*'''White''' refers to people having origins in any of the original peoples of [[Europe]], the [[Middle East]], or [[North Africa]]. It includes people who indicated their race or races as "White" or wrote in entries such as [[ethnic Irish|Irish]], [[ethnic German|German]], [[Italian]], [[Lebanese]], Near Easterner, [[Arab]], or [[Poland|Polish]].
*'''Black or [[African American]]''' refers to people having origins in any of the Black racial groups of [[Africa]]. It includes people who indicated their race or races as "Black, African Am., or Negro", or wrote in entries such as African American, Afro American, [[Nigerian]], or [[Haitian]].
*'''[[American Indian]] and [[Alaska Native]]''' refers to people having origins in any of the original peoples of North and South America (including [[Central America]]), and who maintain tribal affiliation or community attachment. It includes people who indicated their race or races by marking this category or writing in their principal or enrolled tribe, such as [[Rosebud Sioux]], [[Chippewa]], or [[Navajo]].
*'''Asian''' refers to people having origins in any of the original peoples of the Far East, [[Southeast Asia]], or the [[Indian subcontinent]]. It includes people who indicated their race or races as "[[Asian Indian]]", "[[ethnic Chinese|Chinese]]", "[[Filipino]]", "[[Koreans|Korean]]", "[[Japanese person|Japanese]]", "[[Vietnamese]]", or "Other Asian", or wrote in entries such as [[Burman|Burmese]], [[Hmong]], [[Pakistani]], or [[Thai]]. (See also: [[Asian American]])
*'''Native Hawaiian and Other Pacific Islander''' refers to people having origins in any of the  original peoples of [[Hawaii]], [[Guam]], [[Samoa]], or other Pacific Islands. It includes people who indicated their race or races as "Native [[Hawaiian]]", "[[Guamanian]] or [[Chamorro]]", "[[Samoan]]", or "Other Pacific Islander", or wrote in entries such as [[Tahitian]], [[Mariana]] Islander, or [[Chuukese]]. (See also: [[American Pacific Islander]])
*'''Some other race''' was included in 2000 census for respondents who were unable to identify with the five [[Office of Management and Budget]] race categories. Respondents who provided write-in entries such as [[Moroccan]], [[South African]], [[Belizean]], or a Hispanic origin (for example, [[Mexican]], [[Puerto Rican]], or [[Cuban]]) are included in the "Some other race" category.

==Footnote==
# The same language has been used for many years. See for example:
*[http://www.whitehouse.gov/omb/fedreg/ombdir15.html Federal Register Notice October 30, 1997]
*[http://grants.nih.gov/grants/guide/notice-files/NOT-OD-02-001.html AMENDMENT:  NIH POLICY AND GUIDELINES ON THE INCLUSION OF WOMEN AND MINORITIES AS SUBJECTS IN CLINICAL RESEARCH - OCTOBER, 2001]

== Reference ==
*http://www.census.gov/prod/2001pubs/c2kbr01-1.pdf

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====References====
* Adapted from the [[Wikipedia]] article, "Race_(US_Census)" [http://en.wikipedia.org/wiki/Race_(US_Census) http://en.wikipedia.org/wiki/Race_(US_Census)], used under the [[GNU Free Documentation License]]