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NSUBFAM
Number of subfamilies in household

Description

NSUBFAM indicates the number of subfamilies (if any) within the housing unit each person belongs. All individuals who are not part of a subfamily, including all residents of group quarters, receive a code of 0. See SUBFAM for a person-level variable identifying the members of each subfamily.

NSUBFAM is analogous to NFAMS in that it provides the number of family units within each household, but the specific family unit measured by each is different. NFAMS counts as one family all individuals who are related to the household head, whether or not they belong to a subfamily; NSUBFAM does not count household heads or their relatives unless they belong to a subfamily. Additionally, NFAMS counts as separate family units all individuals who are unrelated to the head and who live without a spouse or children; NSUBFAM does not. However, all unrelated subfamilies are counted as separate family units in both NFAMS and NSUBFAM.

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, NSUBFAM is perfectly comparable across time. See GQ and "Family Interrelationships" for a discussion of comparability issues.

The number of subfamilies in a household was top-coded for the 1900, 1910, 1920, 1930 and 1940 100% files. Values of 9 represent "9 or more" subfamilies within the household.

Universe

  • Not group quarters; not vacant units.

Availability

United States
  • 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
  • 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.