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MIGTYPE1
Metropolitan status 1 year ago

Description

MIGTYPE1 indicates whether the respondent lived in a metropolitan area one year ago or not. For some persons identified as living in a metropolitan area during the reference period, MIGTYPE1 also indicates whether the residence was in the largest city/cities ("the central city") in the metropolitan area. (This was only the case if the central city/cities and the remainder of the metropolitan area each had 100,000+ residents in 1980; the 1980 central city boundaries are used even though MIGTYPE1 has data only in the 1950 and 2005-onward samples.) Metropolitan areas consist of a large city and the surrounding economically integrated counties; see METAREA for a detailed definition of metropolitan area.

Note about 2012 ACS samples: The Census Bureau redraws PUMA boundaries every 10 years based on population information gathered from the most recent decennial census. The 2012 ACS files are the first to use the new PUMA codes and boundaries based on the 2010 Decennial Census. The Census Bureau also constructs Migration PUMAs (MIGPUMA1) to be used with migration variables. Because this variable is based on Migration PUMA boundaries in contemporary samples, it is not currently available for 2012 ACS files. IPUMS-USA is working on constructing as many identifiable units as possible based on the new Census 2010 MIGPUMAs.

Users who wish to construct this variable can use the logic described above to identify geographic areas using MIGPUMAs. A map showing the new Census 2010 MIGPUMAs is available in the IPUMS-USA Geographic Tools area.

Codes and Frequencies



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Comparability

This variable is only available for the 1950 Census and 2005-onward ACS and PRCS samples. Comparability between the samples is slightly limited by a difference in the definitions of metropolitan area, captured in the METAREA variable, between the 1950 and ACS/PRCS samples, though the conceptual idea of metropolitan area remained the same between these two samples. Also of note is that those persons living abroad are categorized as non-metro (code 1) in both samples. MIGTYPE5 provides analogous information for 1940 and 1960-2000, using a five-year rather than a one-year reference period.

Universe

  • 1950: Sample-line persons age 1+.
  • ACS, PRCS: Persons aged 1+ who lived in a different house 1 year ago.

Availability

United States
  • 2017: --
  • 2016: --
  • 2015: --
  • 2014: --
  • 2013: --
  • 2012: --
  • 2011: All samples
  • 2010: ACS; ACS 3yr; ACS 5yr
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2004: --
  • 2003: --
  • 2002: --
  • 2001: --
  • 2000: --
  • 1990: --
  • 1980: --
  • 1970: --
  • 1960: --
  • 1950: All samples
  • 1940: --
  • 1930: --
  • 1920: --
  • 1910: --
  • 1900: --
  • 1880: --
  • 1870: --
  • 1860: --
  • 1850: --
Puerto Rico
  • 2017: --
  • 2016: --
  • 2015: --
  • 2014: --
  • 2013: --
  • 2012: --
  • 2011: All samples
  • 2010: PRCS; PRCS 3yr; PRCS 5yr
  • 2009: All samples
  • 2008: All samples
  • 2007: All samples
  • 2006: All samples
  • 2005: All samples
  • 2000: --
  • 1990: --
  • 1980: --
  • 1970: --
  • 1930: --
  • 1920: --
  • 1910: --

Flags

QMIGTYP1 

Editing Procedure

There is no editing procedure available for this variable.