population during the last six censuses has varied from 98 to 91 (table 10). The preponderance of females over males may be overstated because of the relatively greater undercoverage of males than females in the decennial census. For example, the estimated 1970 sex ratio, corrected for undercoverage, is 95, compared with the figure of 91 shown by the decennial census returns.4 'U.S. Bureau of the Census, Evaluation and Research Program of Estimates of Coverage of Population by Sex, Race, and Age: Demographic Analysis, PHC (E) - 4, 1973, p. 28. 2Revised to include adjustment of 1,260,078 persons (512,163 Black and 747,915 White) for unde renumeration in the Southern States. Unrevised census count is 38,558,371 for the total population and 4,880,009 for the Black population. Unadjusted data are used in subsequent tables because revised figures for States, age, etc., are not available. NOTE: The 1930 census and subsequent decennial censuses were conducted as of April 1 of the respective year; prior to 1930, the month of enumeration varied. In this section, the data for 1975 are from different sources. The 1975 data shown in tables 1, 10, 11, and 12 are estimates of the population; 1975 data shown in tables 5, 7, and 9 are from the Current Population Survey. Table 2. Decennial Census Counts and Corrected Estimates of the Black Population: 1900 to 1970 (Numbers in thousands. Corrected figures adjusted for census underenumeration) 1Base is corrected population. 2Computed by the formula for continuous compounding, P1ert NOTE: Demographic analysis was used to develop the corrected population estimates. For a detailed explanation of the methods used, see sources listed in "References for Tables.' Source: U.S. Department of Commerce, Bureau of the Census; and A.J. Coale, and N.W. Rives, Jr., "A Statistical Reconstruction of the Black Population of the United States, 1880-1970," Population Index, Vol. 70 Table 3. Black Population by Free-Slave Status and Change in Slave Population, by Region: 1790 to 1860 NOTE: The standard census definition of regions is used. In that definition, the South includes the States of the Old Confederacy as well as Delaware, the District of Columbia, Kentucky, Maryland, Oklahoma, Source: U.S. Department of Commerce, Bureau of the Census. Table 4. Distribution of Black Slaves and Slaveholding Families, by Selected Divisions and States: 1790 and 1850 Represents or rounds to zero. 40 11.7 310 NA Not available. Data on the number of all families are not available for Delaware, Virginia, Georgia, Kentucky, the Southwest territories, and for Allegany, Calvert, and Somerset Counties in Maryland. 1Includes a small number of free Black slaveholding families. 2 Includes States and territories, not shown separately. 3Estimate. 4 Includes area which is now West Virginia. |