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Report Number P23-4
Component ID: #ti920582389

This report presents estimated net reproduction rates of the white population in each of the 3,125 counties or county equivalents. Materials of this type have been of value in the study of geographical differences in fertility, in local population analysis, and as an aid in marketing research. They have been used, together with other measures, in the delineation of State economic areas.

The rates show clearly that all parts of the country had marked increases in the fertility of the white population between the periods 1935-1940 and 1945–1950, including such areas as Utah and the Appalachian Mountain Area of the South, where the reproduction rates were already quite high in 1935–1940. However, the relative increase tended to be largest in areas where the reproduction rate was relatively low in 1935–1940.

Component ID: #ti702095047

A Note on Language

Census statistics date back to 1790 and reflect the growth and change of the United States. Past census reports contain some terms that today’s readers may consider obsolete and inappropriate. As part of our goal to be open and transparent with the public, we are improving access to all Census Bureau original publications and statistics, which serve as a guide to the nation's history.

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