IPUMS Data Updates: NHGIS, CPS, and IHGIS

Posted: 12/18/2025 ()

IPUMS released three data updates. NHGIS released its fifth set of GIS boundary files for 1980 census blocks. IPUMS CPS released the September 2025 monthly data. IPUMS CPS is also pleased to announce the availability of an extended time series of the Supplemental Poverty Measure (SPM). IPUMS IHGIS has released population censuses for Azerbaijan 2009, Kenya 2019, and Nigeria 2006, and agricultural census data for South Africa 2007.

NHGIS has released its fifth set of GIS boundary files for 1980 census blocks. This release adds blocks for 38 metro areas including Miami; Buffalo; Portland, OR; San Antonio; Charlotte; and Riverside-San Bernardino-Ontario. In total, NHGIS now provides block boundaries for 186 metro areas, including all the top 60 by 1980 population.

IPUMS CPS has released the September 2025 monthly data. We are also pleased to announce the availability of an extended time series of the Supplemental Poverty Measure (SPM). These historical SPM data, which cover the 1968-2009 ASEC samples, were created by the Center on Poverty and Social Policy at Columbia University to enable the examination of poverty with the more nuanced SPM methodology that is available for the 2010-forward ASEC data.

IPUMS IHGIS has released population censuses for Azerbaijan 2009, Kenya 2019, and Nigeria 2006, and agricultural census data for South Africa 2007. The Azerbaijan data had never before been digitized, and the Nigeria data are the first IPUMS census data for the country.