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MIGTYPE5
Metropolitan status 5 years ago

Description

MIGTYPE5 indicates whether the respondent lived in a metropolitan area five years ago. For 1940 and 1980-1990, MIGTYPE5 also indicates whether persons who lived in a metropolitan area five years ago resided in the largest city/cities ("the central city") in the metropolitan area. Metropolitan areas consist of a large city and the surrounding economically-integrated counties; see METAREA .

In 1980, responses to questions about migration were coded for only half the persons included in the IPUMS. These cases provide accurate proportional distributions but not correct absolute numbers for the total population. For correct absolute numbers, users should select cases coded as 2 in MIGSAMP and multiply by 2 as well as by PERWT.

Codes and Frequencies



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Comparability

For the post-1940 samples, MIGTYPE5 is based on the metropolitan classification of the underlying geographic unit of at least 100,000+ residents (and of 400,000+ residents for the 1 percent sample of census 2000) designated by the Census Bureau for confidentiality reasons (i.e., county group, PUMA, or Super-PUMA). See METRO for detailed discussion of confidentiality rules limiting the classification of metropolitan status in each year.

In 1980, the N/A category includes persons for whom the metropolitan status of their past residence could not be classified. In other years, unclassified cases (e.g., for persons who lived in a mixed metro-non-metro area) are coded as 9, "unknown." For comparability with 1980, users must group together the N/A and "unknown" cases (codes 0 and 9).

MIGTYPE1 provides analogous information for sample-line persons in 1950, the 2005-onward ACS, and the 2005-onward PRCS, using a one-year rather than a five-year reference period.

Users should not that in all years we have interpreted "abroad" as non-metro.

Universe

  • 1940: Persons age 5+.
  • 1960-1970: Persons age 5+.
  • 1980: Persons age 5+; 50 percent of cases (see MIGSAMP).
  • 1990: Persons age 5+; not available for Puerto Rico.
  • 2000: Persons age 5+ who lived in a different house 5 years ago.

Availability

United States
Puerto Rico
  • 2016: --
  • 2015: --
  • 2014: --
  • 2013: --
  • 2012: --
  • 2011: --
  • 2010: --
  • 2009: --
  • 2008: --
  • 2007: --
  • 2006: --
  • 2005: --
  • 2000: All samples
  • 1990: --
  • 1980: All samples
  • 1970: All samples
  • 1930: --
  • 1920: --
  • 1910: --

Flags

QMIGCOGR  QMIGPLC5  QMIGTYP5 

Editing Procedure

There is no editing procedure available for this variable.