Focusing on questions - not the data

PDQ-Explore was designed to make data exploration and analysis of very large data sets, such as the 280 million U.S. Census records, easier and faster for novice users and experienced analysts alike.

PDQ-Explore eliminates the complexity of working with massive, raw data sets. Users can quickly create views that provide a complete snapshot of the data and its unique characteristics, including metadata and other interdependencies. Unlike other analytical solutions, PDQ-Explore does not require any additional programming to achieve this type of visual clarity.

Instead of being immersed in the intricacies of the data, users can stay focused on their questions and explore the data with a series of iterative ad hoc queries.

PDQ-Explore helps you arrive at problem-solving insights much faster than with competing technologies. Above all else, PDQ-Explore is a tool to think with, providing answers while you can still remember why you asked the question.

Register with PDQ

To receive online access to PDQ-Explore or to download a copy of PDQ-Explore, please complete the following registration form.

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Comprehensive Demographic Data Resources

  1. Public Use Microdata Sample - 1% and 5% sample of the decennial census of persons and households
  2. Integrated Public Use Microdata Sample (IPUMS) - Full integrated U.S. census data from 1850 - 2000
  3. American Community Survey (ACS) - U.S. census data at the local metropolis and state level 2000 - 2004. ACS data refers to the 50 states and 331 metropolises.
  4. Current Population Survey (CPS) - A monthly survey of households (Census Bureau & Bureau of Labor Statistics).
  5. Wisconsin Longitudinal Study (WLS) - a longitudinal study of a sample of Wisconsin 1957 high school graduates.
  6. National Center for Health Statistics birth and mortality rates
  7. General Social Survey