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SUBFAM
Subfamily membership

Description

SUBFAM indicates to which subfamily (if any) within the housing unit each person belongs. Members of the first subfamily receive a code of 1; members of the second subfamily receive a code of 2; and so on. All individuals who are not part of a subfamily, including all residents of group quarters, receive a code of 0. See NSUBFAM for a household-level variable giving the total number of subfamilies within the household.

SUBFAM is analogous to FAMUNIT in that it identifies membership in family units within each household, but the specific family unit measured by each is different. FAMUNIT is coded 1 for all individuals who are related to the household head, whether or not they belong to a subfamily; SUBFAM is coded 0 for household heads and their relatives unless they belong to a subfamily. Additionally, FAMUNIT counts as separate family units all individuals who are unrelated to the head and who live without a spouse or children; SUBFAM does not and codes them as 0. However, members of all unrelated subfamilies receive unique codes in both FAMUNIT and SUBFAM.

For more information on subfamilies and their measurement, see Subfamily Overview.

Codes and Frequencies



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Comparability

Aside from changes in the definition of group quarters, SUBFAM is perfectly comparable across time. See GQ and "Family Interrelationships" for a discussion of comparability issues.

The number of subfamilies in a household was topcoded for the 1900, 1910, 1920, 1930 and 1940 100% file. Values of 9 represent persons in subfamilies 9+.

Universe

  • Persons not in group quarters.

Availability

United States
  • 2017: All samples
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 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: All samples
  • 2003: All samples
  • 2002: All samples
  • 2001: All samples
  • 2000: All samples
  • 1990: All samples
  • 1980: All samples
  • 1970: All samples
  • 1960: All samples
  • 1950: All samples
  • 1940: All samples
  • 1930: All samples
  • 1920: All samples
  • 1910: All samples
  • 1900: All samples
  • 1880: All samples
  • 1870: --
  • 1860: --
  • 1850: --
Puerto Rico
  • 2017: All samples
  • 2016: All samples
  • 2015: All samples
  • 2014: All samples
  • 2013: All samples
  • 2012: All samples
  • 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: All samples
  • 1990: All samples
  • 1980: All samples
  • 1970: All samples
  • 1930: All samples
  • 1920: All samples
  • 1910: All samples

Flags

This variable has no flags.

Editing Procedure

There is no editing procedure available for this variable.