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GEO_NG2003_2018 (GEO_NG2003_2018)
Nigeria regions, 2003-2018 [integrated; GIS]

Codes and Frequencies

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GEO_NG2003_2018 reports the region of Nigeria where the respondent was interviewed. The variable is integrated to yield units with consistent boundaries across samples.

Labels identify the modern geographic units (grouped states) contained in each integrated region. Each sample also has its own non-integrated geography variable. An additional integrated variable, GEOALT_NG2008_2018, does not include the 1990, 1999, or 2003 Nigeria samples but contains greater geographic detail (states).

An integrated GIS map (in shapefile format) for Nigeria can be downloaded here.


The Nigeria 1990 and 1999 samples are excluded from GEO_NG2003_2018 due to inconsistent boundaries.


  • Nigeria 2003: All women age 15-49.
  • Nigeria 2008: All women age 15-49.
  • Nigeria 2013: All women age 15-49.
  • Nigeria 2018: All women age 15-49.
  • Nigeria: 2003-C, 2003-B, 2003-H, 2003-W, 2003-M, 2008-M, 2008-H, 2008-W, 2008-B, 2008-C, 2008-W, 2013-M, 2013-B, 2013-C, 2013-H, 2013-W, 2013-W, 2018-W, 2018-C, 2018-B, 2018-M, 2018-H, 2018-W