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GEO_NG1999 (V101_NG1999)
Nigeria regions, 1999 [GIS]

Codes and Frequencies

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GEO_NG1999 (V101_NG1999) indicates the region of Nigeria where the respondent was interviewed. DHS regions in the 1999 Nigeria survey are equivalent to grouped states.

Other sample years have their own sample-specific geography variables. There are also integrated variables, GEO_NG2003_2013 and GEOALT_NG2008_2013, that provide spatially consistent units over time. The 1999 Nigeria sample is excluded from GEO_NG2003_2013 and GEOALT_NG2008_2013 due to inconsistent boundaries.

A GIS map for GEO_NG1999 (in shapefile format) can be downloaded from the DHS Program Spatial Data Repository Boundaries page.


GEO_NG1999 (V101_NG1999) is a country- and sample-specific variable and has no comparability issues.

Comparability - Standard DHS

GEO_NG1999, like other V101 variables, is a geographic variable added during processing of the DHS data. V101 is included in all Phases of the DHS.


  • Nigeria 1999: All women age 10-49.
  • Nigeria: 1999-H, 1999-M, 1999-W, 1999-C, 1999-B