September 2015 data release
NSF extends IPUMS-International to 2019
July 2014 data release
Geography variables reorganized and expanded
July 2013 data release
NIH extends Latin America project to 2018
Integrated DHS project funded
June 2012 data release
2011 IPUMS-International Research Award winners
Terra Populus Project funded by NSF
IPUMS Dublin workshop, August 2011
June 2011 data release
2010 IPUMS-International Research Award winners
Improved variable browsing and data extract system
IPUMS Havana workshop, November 2010
June 2010 data release
2009 IPUMS-International Research Award winners
Mortality, fertility, migration module data
Improved web dissemination system
NIH extends Eurasia project to 2014
May 2009 data release
NSF extends IPUMS-International to 2014
2008 IPUMS-International Research Award winners
June 2008 data release
NIH extends Latin America project to 2013
June 2007 data release
December 2006 data release
IPUMS Meeting in Paris
June 2006 data release
December 2005 data release
IPUMS-Europe Workshop in Spain
NSF funds expanded IPUMS-I
In September 2015 IPUMS added 19 new samples:
Costa Rica 2011
Ethiopia 1984, 1994, 2007
Mozambique 1997, 2007
Paraguay 1962, 1972, 1982, 1992, 2002
Puerto Rico 2010
South Africa 2011
The samples for Armenia, Austria, Costa Rica, France, Ghana, Portugal, Puerto Rico, South Africa, and Spain extend the pre-existing data series for those countries. Ethiopia, Mozambique, and Paraguay are new countries in IPUMS. The database now contains records for 614 million persons. More information about the release is available at our revision history.
The full content of the IPUMS is summarized on the samples page. The next data release is scheduled for summer 2016.
As always, we are grateful to the National Statistical Offices who contributed their data for use by the research community.
In September 2014 the National Science Foundation extended the IPUMS project for an additional five years. The NSF grant complements the two NIH regional grants that specifically support data development in Latin America and Eurasia. The NSF grant funds the project through 2019.
In July 2014, IPUMS added 20 new samples for Dominican Republic, Ghana, Ireland, Liberia, Mali, Nigeria, Ukraine, Uruguay, and Zambia. Several of the samples extend the pre-existing data series for a country. The database now contains records for 560 million persons.
In addition to the new samples, in July 2014 we significantly revised the geographic variables. IPUMS has developed subnational geographies for each country that are consistent over time and have associated GIS shape files. To distinguish the harmonized and unharmonized geographic variables, which will ultimately be available at the first and second administrative levels for most countries, we have imposed a new, more systematic variable-naming convention.
The variable GEOLEV1 combines the harmonized first-level subnational units for all countries into a single variable. It allows global analysis and mapping (with its associated shape file) of the entire database at the first administrative level.
In July 2013, IPUMS added 27 new samples for Argentina, Bangladesh, Brazil, Burkina Faso, Cameroon, Ecuador, Fiji, Haiti, Kenya, Krygyz Republic, Panama, South Sudan, and the United States. A number of the samples extend the pre-existing data series for a country. The database now contains records for 543,968,021 persons.
Registered users can now analyze IPUMS-International data online without needing to download data or using a statistical package. The system will do simple tabulations as well as more sophisticated multivariate analyses. Tabulations can be as fast as a few seconds. Go to the online tabulator page and read the instructions for more information on the sytem.
IPUMS-International users can now set up classroom accounts. The accounts enable instructors to share extracts directly with students through the IPUMS web site. Student registrations are also easier, and instructors can see who is registered and therefore legally entitled to receive IPUMS data. Go to the classroom registration page for more information.
In February 2013 the National Institutes of Health extended the IPUMS-Latin America project, enabling the processing of new samples and various enhancements. The project is funded through 2018.
In June 2012, IPUMS added 26 new samples for El Salvador, Indonesia, Mexico, Morocco, Nicaragua, Turkey, and Uruguay. The data release includes approximately 40 new integrated and 2300 unharmonized variables.
In April 2012 the National Institutes of Health funded a new five-year project to create an IPUMS-style web dissemination system for the Demographic and Health Surveys. In collaboration with MEASURE DHS and USAID, the project will build a data system based on the IPUMS design that will allow browsing of DHS content and creation of user-specified data extracts that pool data across any combination of DHS samples. In the initial project period most samples for Africa will be included in addition to the samples for India. The system will be implemented on the MEASURE DHS web site, and user approvals for accessing the data will continue to be managed by MEASURE DHS. A preliminary site provides more information about the IDHS project. The initial release of the new IDHS system is planned for spring 2014.
The winners of the 2011 IPUMS-International Research Awards are:
Published work: Jeroen J.A. Spijker and Albert Esteve, "Changing Household Patterns of Young Couples in Low- and Middle-Income Countries." History of the Family (2011) 16: 437-455.
Graduate student: Andrew Halpern-Manners, "The Effect of Family Member Migration on Education and Work Among Nonmigrant Youth in Mexico." Demography (2011) 48: 73-99.
In September 2011 the U.S. National Science Foundation funded a new five-year project at the Minnesota Population Center, Terra Populus, that will combine various types of geospatially organized data into a single data dissemination system. The first version of the system will include population, climate, and land use data, and should become available to researchers in betatest form in 2013. The population microdata will initially come from the IPUMS-International project and will be subject to the IPUMS user registration requirements.
The Minnesota Population Center, in conjunction with the annual meeting of the International Statistical Institute, held an IPUMS-International workshop for data producers and researchers at Trinity College, Dublin, August 7, 2011. More than 40 participants from national statistical offices and universities attended the day-long meeting to discuss upcoming censuses, new research possibilities, and the features of the IPUMS data series.
In June 2011, IPUMS added 26 samples for Cambodia, Egypt, France, Germany, Iran, Ireland, Jamaica, Malawi, Palestine, Sierra Leone, Sudan, and Vietnam. The data release includes approximately 40 new integrated and 2100 unharmonized variables.
The winners of the 2010 IPUMS-International Research Awards are:
Published work: Hoyt Bleakley, "Malaria Eradication in the Americas: A Retrospective Analysis of Childhood Exposure," American Economic Journal: Applied Economics 2:2 (2010).
Graduate student: Willa Friedman, "Local Economic Conditions and Participation in the Rwandan Genocide," Department of Economics, University of California at Berkeley, December 30, 2010.
In February 2011 we introduced a new version of the web user interface for browsing variables and creating data extracts. The new system is explicitly designed around the concept of a "data cart" to which one adds variables and samples while browsing, and from which one "checks out" to generate a data extract. The new system involves less visible technical improvements that are a better platform for a number of new features we are planning.
The Minnesota Population Center, in conjunction with the annual meeting of the Latin American Population Association (ALAP), held an IPUMS-International workshop for researchers and data producers at the National Hotel in Havana, Cuba, November 14, 2010. More than 60 participants from national statistical offices and Latin American universities attended the day-long meeting to discuss upcoming censuses, new research possibilities, and the features of the IPUMS data series.
In June 2010, IPUMS added 28 samples for Cuba, Mali, Nepal, Pakistan, Peru, Puerto Rico, Saint Lucia, Senegal, Switzerland, Tanzania and Thailand. The data release includes approximately 55 new integrated and 2500 unharmonized variables.
We also added a discussion of variance estimation that highlights situations where sample design can significantly affect standard errors. We will add more tools in the future to aid proper variance estimation.
The winners of the 2009 IPUMS-International Research Awards were:
Published work: Cynthia Feliciano, "Gendered selectivity: U.S. Mexican Immigrants and Mexican Nonmigrants, 1960-2000." Latin American Research Review, 43: 139-160.
Graduate student: Misty Heggeness, "Global trends in marital instability from 1970 to the present: Do economic opportunity and economic development matter?"
We added downloadable datasets containing fertility, mortality and migration events. These data do not fit within the normal data structure handled by the extract system, but they can be matched to extracted data, giving researchers access to the full information in these census modules. See the supplemental data page.
We redesigned the web interface to combine variable browsing and data extraction. The new system includes a variable search feature for the first time. The data extract system is also faster.
In January 2009 the National Institutes of Health extended the IPUMS-Europe project while expanding its scope to include Asia as well as Europe. The project is funded through 2014.
In May 2009, IPUMS added 19 new samples for Armenia, Bolivia, France, Guinea, India, Italy, Jordan, Kyrgyz Republic, Mongolia, Romania, Slovenia, and South Africa. The data release includes approximately 60 new integrated and 1700 unharmonized variables.
GIS boundary files were added with this data release, enabling the mapping of the geographic variables relating to the country level and to the first administrative level within each country.
In spring 2009 the U.S. National Science Foundation granted the IPUMS-International project its second 5-year extension, to 2014. The resulting data series is expected to include approximately 70 countries and 250 samples by the conclusion of the grant in 2014.
The winners of the 2008 IPUMS-International Research Awards are:
Senior scholar: David Lam and Leticia Marteleto, "Stages of the demographic transition from a child's perspective: family size, cohort size, and children's resources"
Junior scholar: Kevin J.A. Thomas, "The human capital characteristics and household living standards of returning international migrants in Eastern and Southern Africa"
Student: Claire Chase, Tobenna Anekwe, Jeremy Barofsky, and Farzadfar Farshad, "Economic effects of malaria eradication: evidence from an eradication experiment in Kigezi, Uganda"
In June 2008, IPUMS added 32 new samples for Austria, Canada, China, Colombia, Egypt, Ghana, Iraq, Malaysia, Mexico, Netherlands, Panama, United Kingdom, United States, and Venezuela. We also added approximately 100 new internationally harmonized variables and 2000 unharmonized variables specific to the individual samples.
The primary data improvement of this release is the development of location-of-mother and location-of-father variables for every sample in the data series. The parent locators identify the record number within the household of each person's mother or father.
The other major development this data release is a significant redesign of the variable browsing and data extraction system. Users have more control over how they view the variables. The extract system now allows users to customize the size of their data extracts, and the system can attach spouse or parental characteristics as new variables on a person's record.
In February 2008, the National Institute of Child Health and Human Development awarded the Minnesota Population Center a major grant to extend and expand the IPUMS-International Latin America project. The 5-year grant will add approximately 35 new samples, including the 2010 round of censuses. In addition it will develop better geographic tools to help realize the research potential of the unprecedented concentration of public data from the region.
In June 2007 IPUMS added 17 new samples for Argentina, Hungary, Israel, Palestine, Portugal, and Rwanda.
The primary data improvement was the development of a location-of-spouse variable for every sample in the data series. The spouse locator (SPLOC) identifies the record number within the household of each person's spouse, making it easy for researchers to attach spouse's characteristics as new variables on a person's record.
In December 2006 we added 16 new samples for Belarus, Cambodia, Greece, Philippines, Romania, Spain, and Uganda.
The data release introduced some major innovations designed to make the site more useful and user-friendly. The most important improvements include the addition of approximately 5000 unharmonized source variables, the ability to filter all variable-level documentation, the creation of separate general and detailed versions of complex variables, and the identification of more geographic units.
Hosted by the Institut National D'études Démographiques, and with funding from the European Union and the U.S. National Institutes of Health, representatives from 12 European countries met in Paris in June 2006 to discuss European census data harmonization within IPUMS-International. At the meeting, representatives from the Centre d’Estudis Demogràfics of the Univeristat Autònoma de Barcelona presented their plans for a parallel data site specific to Europe. The meeting was also attended by several non-European representatives who participated in a global IPUMS workshop following the European meeting. In the workshop, members of African and American countries discussed their census integration challenges and contributed their data to the IPUMS project. The workshop was hosted by the Centre Population et Développement.
In June 2006 we added 19 samples for Chile, Costa Rica, Ecuador, South Africa, and Venezuela.
The release also introduced dynamic generation of the main variables page, on-line case-counts for all variables, and the ability to compile enumeration text on demand for each harmonized variable.
In December 2005 we added approximately 40 household variables and 100 person variables across all samples. The person variables include nearly all substantive variables from first 28 samples in the data series.
The web site also included an improved version of our data extraction software. The key feature of the new Java system is the ability to revise old extracts and resubmit them without having to step through the entire extract process. The system also has some new features such as the ability, when doing case selection, of either including only persons who meet the selection criteria or including all persons residing in households with someone meeting the selection criteria.
Representatives from 14 European countries met in Barcelona in July 2005 to discuss plans for European census data harmonization within IPUMS-International. The meeting was hosted by the Centre d’Estudis Demogràfics of the Univeristat Autònoma de Barcelona, with funding from the European Union and the U.S. National Institutes of Health. Several non-European countries also attended the meetings and contributed their data to the greater IPUMS undertaking.
The National Science Foundation awarded the Minnesota Population Center a major grant to expand and integrate the work of the IPUMS-International projects. The 5-year grant promises a data series consisting of 130 samples from 40 countries. It is an extension of the original IPUMS-International NSF grant, covering 28 samples from 8 countries, which will be completed in Fall 2005. The new grant was the only infrastructure project funded from this year's Human and Social Dynamics initiative. The infrastructure project adds an advisory board of noted specialists to help ensure this important investment leads to the most useful possible product for researchers.