Population problems / by Edward Byron Reuter.

  • Edward Byron Reuter
Date:
1923
Catalogue details

Licence: In copyright

Credit: Population problems / by Edward Byron Reuter. Source: Wellcome Collection.

    54/364 page 32
    SEX DISTRIBUTION OF THE URBAN AND RURAL POPULATIONS OF THE UNITED STATES, 1920 Classes of the Males to 100 Females Population Urban Rural Total .. 108.0 White . . 100.5 109.0 Negro . . 954 101.2 Native white, total .. . 96.9 IO6.7 Native parentage . . 98.6 106.3 Foreign parentage. . 95-0 I IO.4 Mixed parentage . . 92.5 107.2 Foreign-born white ., . II5-9 141.8 Indian, and all others ..., . 276.9 126.6 The Age Distribution of Populations.—The age dis¬ tribution is perhaps the most important division of a population. This distribution is regulated in normal cir¬ cumstances by the birth and mortality rates. In the populations of European peoples about one- third of the numbers, roughly speaking, are under the age of fifteen years; about one-half are of ages from 15 to 50; and about one-sixth older than fifty years. A common four-fold division of the population into age groups is that which gives the number below 15; the number between 15 and 40; the number between 40 and 60; and the number over 60. The following tabulation illustrates the differences between several countries and the distribution for certain age groups: AGE DISTRIBUTION OF SELECTED COUNTRIES Per 1,000 Population Country Census Year Under 15 15 to 40 40 to 60 Over 60 England . 1901 324 423 179 74 Germany . 1900 348 395 179 78 United States . 1900 334 422 169 75 France . 1901 261 389 226 124 Ireland . 1901 304 407 180 109 Sweden . 1900 324 366 191 119 Italy . 1901 341 366 196 97 Servia . 1900 419 395 142 44 Age Distribution in the U. S.—Owing to various disturbing factors, particularly immigration and internal migration, there are wide differences in the age distribu-
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