Technical Support

Online Tutorials

For an introduction to the IPUMS Terra extract builder, please see our brief tutorials

  • Creating an Area-level Extract: PDF, video
  • Creating a Microdata Extract: PDF, video
  • Creating a Raster Extract: PDF, video


Questions and answers

For specific questions about the data or website, please search for an answer on our User Forum. You can also ask a question there, which one of our staff members or a fellow user will answer.


User Feedback / Errors

We also welcome suggestions and feedback about errors, inconsistencies, or ambiguities in the data and documentation. Please send feedback to