U.S.
Census Populations With Bridged Race Categories
Race bridging refers to
making data collected using one set of race categories consistent with data
collected using a different set of race categories, to permit estimation and
comparison of race-specific statistics at a point in time or over time. More
specifically, race bridging is a method used to make multiple-race and
single-race data collection systems sufficiently comparable to permit
estimation and analysis of race-specific statistics.
The National Center for
Health Statistics releases bridged-race population estimates of the resident
population of the United States, based on Census 2000 counts, for use in
calculating vital rates. These estimates result from bridging the 31 race
categories used in Census 2000, as specified in the 1997
Office of Management and Budget (OMB) standards for
the collection of data on race and ethnicity, to the four race categories
specified under the 1977 standards. Many data systems, such as vital
statistics, are continuing to use the 1977 OMB standards during the
transition to full implementation of the 1997 OMB standards. The
bridged-race population estimates are produced under a collaborative
arrangement with the U. S. Census Bureau. The bridging methodology is
described in the report, “Census 2000 Populations with Bridged Race
Categories” which was published in September 2003 and is available for
download from this site.
The bridged single-race
population estimates are being used to calculate birth and death rates
produced by NCHS for data year 2000 and later years, as well as to produce
revised birth and death rates for the 1990s. Published reports that used
the 1990-based postcensal population estimates have been re-issued in whole
or in part.
Comments Although efforts
were made to use the best available data and methods to produce the bridged
estimates, the modeling process introduces error into the estimates. The
potential for error will be greatest for the smallest population groups,
particularly the smaller race groups and county level estimates. NCHS would
appreciate receiving feedback on the usefulness of the estimates as well as
any problems that have been identified. Please provide comments via e-mail
to: POPEst@cdc.gov.
Methodology
United States Census 2000 Population with Bridged Race Categories
(9/2003) View/download PDF
5.6 MB
New Data Releases Vintage 2007 bridged-race postcensal population estimates of the
resident population of the United States by year, county, single year of
age, bridged race, Hispanic origin, and sex.
(released by the
Census Bureau on 8/7/2008
and by NCHS on 9/5/2008)
Tabulated Data
The following tables (as Excel spreadsheets) showing bridged and enumerated
population counts for 2000 and the 1990-based July 1, 2000, postcensal
population estimates previously used by NCHS to calculate vital rates are
available for download:
Table
1. White resident population, by
State and Hispanic origin: United States, 2000
Table
2. Black or African American resident population, by State and
Hispanic origin: United States, 2000
Table
3. American Indian or Alaska Native resident population, by
State and Hispanic origin: United States, 2000
Table
4. Asian resident population, by State and Hispanic origin:
United States, 2000
Table
5. Resident population, by State, Hispanic origin, and race:
United States, 2000