This report provides detailed statistics on the geographic mobility of Americans, based upon data collected in March 1991 Current Population Survey (CPS). Mobility status is determined by asking respondents if they were living in the same residence (house or apartment) one year earlier; for persons who changed residence, additional questions are asked to identify county and city of residence one year earlier. This enables classification of moved into within-county and between-county moves as well as classing movement according to metropolitan and nonmetropolitan origins and destinations.
The CPS is adjusted to updated independent estimates of the population based on data from decennial censuses. The estimates for 1991 in this report are inflated to national population controls by age, race, sex, and Hispanic origin. The population controls are based on results of the 1980 census carried forward to 1991. The estimates in this report, therefore, may differ from estimates that would have been obtained using 1990 census results brought forward to the survey date. Population controls incorporating 1990 census results will be used for survey estimation beginning in 1993.