IPUMS is made possible through the collaboration of many talented and dedicated people. This listing includes current full-time research and IT/technical staff members. IPUMS also receives support from the ISRDI administrative team. For more comprehensive listings, including principal investigators, faculty researchers, advisory boards, student research assistants, and former staff, please see individual project staff pages.

Primary Contacts

Questions about IPUMS data and documentation should be directed to IPUMS User Support. Ideas for potential collaborations or other project-level questions may be directed to the project contacts.

IPUMS User Support:
Director of IPUMS:
Steve Ruggles (ruggles@umn.edu)

Links on each project name will take you to the more comprehensive project-specific staff page.

Research Staff

Daniel Backman, U.S. Microdata
Anna Bolgrien, International Microdata
Etienne Breton, Senior Data Analyst 

Danika Brockman, U.S. Microdata
Derek Burk, International Microdata
Annie Chen, U.S. Microdata
Lara Cleveland, International Microdata
Grace Cooper, Sr. U.S. Microdata
Gretchen Corcoran, International Microdata
Julia Rivera Drew, U.S. Microdata
Daniel Ehrlich, International Microdata
Catherine Fitch, U.S. Microdata
Sarah Flood, U.S. Microdata
Amy Grotsun, User support
Matt Gunther, International Microdata
Quinn Heimann, International Microdata
Jonas Helgertz, U.S. Microdata
Miriam King, International Microdata
Katherine Knowles, Aggregate-Spatial
Devon Kristiansen, International Microdata
Tracy Kugler, Aggregate-Spatial
Jane Lee, International Microdata
Rodrigo Lovaton Davila, International Microdata
Diana Magnuson, International Microdata
Mehr Munir, International Microdata
Matthew Nelson, U.S. Microdata
Stephanie Richards, U.S. Microdata
Finn Roberts, Aggregate-Spatial
Renae Rodgers, U.S. Microdata
Sula Sarkar, International Microdata
Megan Schouweiler, U.S. Microdata
Jonathan Schroeder, Aggregate-Spatial & U.S. Microdata
Matthew Sobek, US & International Microdata
James Vagasky, U.S. Microdata
David Van Riper, Aggregate-Spatial
Michael Westberry, U.S. Microdata
Kari Williams, User support

IT and Technical Staff

Canin Apriori, Product Team
Poornendu Attupurath Narayanan, Data Team
Li Dai, IT Operations Team
Colin Davis, Data Team
Daniel Elbert, Product Team
Fran Fabrizio, IT Director
Jason Goray, Product Team
Josiah Grover, Data Team
Riley Harper, Data Team
Kevin Horne, Data Team
Lap Huynh, Historical U.S. Census Team
Willy Lee, IT Operations Team Lead
Alex McWhinnie, Product Team Lead
Nikita Narendra Nayak, Data Team
Marcus Peterson, Product Team
Casey Sass, Web Product Team
Jake Wellington, Data Team Lead
Kyohei Yazawa, Product Team