It is the purpose of this thesis to consider the growth and urbanization of the Texas population since 1880, with primary emphasis on changes which took place during the decade from 1940-1950. The problem involved, therefore, in the second part of this study is to determine the amount of urbanization which took place in Texas during the 1940-1950 decade, to determine the variations among the several regions and "size groups" of cities, and to describe some of the factors related to such increases and variations.