Westchester County, NY
Census 2000

	POPULATION	Westchester's Population - 923,459

Age
The data on age were derived from answers to a question that was asked of all people. The age classification is based on the age of the person in complete years as of April 1, 2000.  The age of the person was usually derived from their date of birth information.  Their reported age was used only when date of birth information was unavailable.

Sex
The data on sex were derived from answers to a question that was asked of all people.   Individuals were asked to mark either ‘‘male’’ or ‘‘female’’ to indicate their sex.  For most cases in which sex was not reported, it was determined by the appropriate entry from the person’s given (i.e.,first) name and household relationship.  Otherwise, sex was imputed according to the relationship to the householder and the age of the person

Race          
The data on race were derived from answers to the question on race that was asked of all people.  The concept of race, as used by the Census Bureau, reflects self-identification by people according to the race or races with which they most closely identify.  These categories are socio-political constructs and should not be interpreted as being scientific or anthropological in nature.

Furthermore, the race categories include both racial and national-origin groups.  The racial classifications used by the Census Bureau adhere to the October 30, 1997, Federal Register Notice entitled, ‘‘Revisions to the Standards for the Classification of Federal Data on Race and Ethnicity’’ issued by the Office of Management and Budget (OMB).  These standards govern the categories used to collect and present federal data on race and ethnicity.  The OMB requires five minimum categories (White, Black or African American, American Indian or Alaska Native, Asian, and Native Hawaiian or Other Pacific Islander) for race.  The race categories are described below with a sixth category, ‘‘Some other race,’’ added with OMB approval.  In addition to the five race groups, the OMB also states that respondents should be offered the option of selecting one or more races.

Hispanic or Latino
The data on Hispanic or Latino population were derived from answers to a question that was asked of all people.  Origin can be viewed as the heritage, nationality group, lineage, or country of birth of the person or the person's parents or ancestors.   People who identify their origin as Spanish, Hispanic, or Latino may be of any race.
(Source: US Census Bureau 2000)

	Race Code List
	Hispanic or Latino Code List

Group Quarters
The data on Group Quarters population were derived from answers to a question that was asked of all people.  The Group Quarters population consists of people who do not live in housing units and are categorized by two general types: institutionalized population and noninstitutionalized population.  The institutionalized population includes people under formally authorized, supervised care or custody.  The noninstitutionalized population includes people living in group quarters other than institutions, such as college dormitories or group homes.
(Source: US Census Bureau 2000)

Group Quarters Code List

TABLES
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	POPULATION		TABLES