CensusCD 2000 Short Form provides details about the population of the United States. Short Form (SF1) is a 100 % count sample. It has variables including race, Hispanics, age of head of household, age of children, presence of older relatives, composition of the family, family size, rent vs. own, etc. It has 8 levels of geography: State, County, Tract, Block Group, MCD/CCD, Place, Congressional divisions and Zip (ZCTA).
CensusCD 2000 Short Form is essential for two key pieces of information that are not available on the 2000 Long Form (SF3): Group Quarters and Country of Origin for Hispanics and for Asians. If you are interested in populations in specific types of group quarters (correctional facilities, nursing homes, student dorms, military barracks, etc.), then the SF1 is the only source of data. Likewise if you want the specific country of origin for Hispanics and Asians, you must consult the 2000 Short Form.
Case Study: Distribution of Hispanics in NYC
The US Census Bureau created nearly 5000 tables (approximately 10,000 variables) that deal with racial and ethnic breakouts on the 2000 Long Form, thus enabling analysis of how Hispanics are faring compared with Whites, Blacks, Native Americans, Asians, Pacific Islanders, and multi-racials. But in 2000, the specific table of Hispanics by Country of Origin was not included in the Long Form as it was in the 1990 Census. Instead, it was left on the Short Form (SF1).
When analyzing NYC, this example looks at the distribution of three different Hispanic groups that are located in distinct neighborhoods throughout the city. For this analysis, any tract that had less than 100 persons was dropped. For Puerto Rican neighborhoods, all tracts that had over 35% Puerto Rican population were chosen. For Dominican neighborhoods, tracts that had over 24% Dominican population were chosen, and for the Central & South American Neighborhoods tracts with at least 20% of its population from these areas were chosen.
Red Tracts represent Puerto Rican tracts, Blue Tracts are predominantly Dominican, and Green Tracts are Central and South American Neighborhoods. The map illustrates that Puerto Ricans predominate throughout the Bronx and in sections of Brooklyn and Queens. Dominicans have neighborhoods concentrated primarily in upper Manhattan. While Central & South Americans congregate in northern Queens.