ABSTRACT
Fertility has lowered substantially and net migration has changed from inflow to outflow. This chapter focuses on migration variables available in the 1990 Mexican Census. The migration dimensions include inmigration from the major sending places of the Central remainder region, Veracruz, Puebla, and South region. Migration flows between the core and more peripheral parts of the Megacity can be examined through the spatial patterning of inmigration into Federal District delegations from the State of Mexico and into State of Mexico municipios from the Federal District. The highest nativity is located in the semi-urban peripheral parts of the State of Mexico, while at the same time the lowest regions of nativity are in the areas of high growth in the 80s surrounding the northern Federal District. Inmigrants likely consider Mexico City housing quality in deciding on destination zone and on settlement after arrival. There is moderate correlation between sex ratios of resident population and sex ratios of inmigrants.
