The tables presented here are preprints of tables 164 and 272 from Final Report PC(l)-lD, which contains additional summary information on the detailed characteristics of the population.

Almost three-quarters (73 percent) of the population 20 to 29 years old in April 1960 had moved at least once since April 1955. As age increased beyond 30 years, this percentage of movers decreased to a low of about 27 percent in the age group 75 to 79 years, and then increased slightly among the very old.

Among children 5 to 9 years old, the percentage of movers was about 55, similar to the level observed for persons in their 30's; and among children 10 to 14 years old about 46, about the level observed for persons in their late 30's and early 40's. At ages 15 to 19 years, this mobility rate approached that of the total population, which was 47 percent.

The high rate of mobility among persons in their 20's is a reflection of the fact, which is sometimes overlooked in the interpretation of migration data, that normally as children grow up they leave their parental home, marry, and establish homes of their own. The decline in mobility at the succeeding ages indicates, generally speaking, an increasing social and economic stability in which a stake in a particular job and strengthening community ties militate against further mobility.

The PDF to the right contains the 6-page report.