population of Alaska and of our insular possessions was taken into
consideration. It had moved west about 39 miles and northward
seven-tenths of a mile and was located at Bloomington in southern
Indiana. The westward movement from 1900 to 1910 was nearly three times
as great as from 1890 to 1900, but was less than that for any decade
between 1840 and 1890. This advance of the centre of population toward
the West was due to the increase in the population of the Pacific Coast
States. The large increase in the population of New York, Pennsylvania,
Illinois, and other States north of the thirty-ninth parallel served as
a balance to the increase in Texas, Oklahoma, and southern California.