Demographic Profile Products

Based on 2000 and 1990 Decennial Census Data

Overview

The Missouri Census Data Center has created a family of related applications that provide access to distilled demographic summaries of a wide array of geographic areas based on the results of the 2000 and 1990 decennial censuses. Each application comprises a report-generating web application that accepts standardized parameters (mostly geographic codes) and dynamically generates a profile (a report using HTML) based on those specifications. These reports are sent directly to the web browser. In addition to the demographic data, they include a series of hyperlinks to metadata and related applications. These web applications are all written using the SAS software package.

The underlying datasets that power the applications are organized within special directories, and direct access to the data is available via a web application called Uexplore.

Why So Many?

The MCDC has developed several of these profile products. Why so many? Partly because the Census Bureau delivers most of the data from a decennial census in two basic kinds of summary files:

  1. Data based on the short-form questionnaire that everyone fills out. Usually referred to as complete count data.
  2. Data based on the long-form questionnaire that is sent to only a sample (about 1 in 6) of households. Usually referred to as sample data.

Because the data from the short form is released about a year earlier than the data from the long form, we usually have to create data products based on the short form earlier than those based on the long form. The short-form data is also available at finer units of geography (down to the block level) that the long-form data. Our profile products usually come in pairs, with one being based on short-form data and the other based on long form data. The specific data products (summary files) released by the Census Bureau corresponding to these two kinds of data are "Summary File 1" (complete count) and "Summary File 3" (sample data). There are also summary files 2 and 4, but we do not use those tabulations in our demographic profile products.

The other defining dimension for these data products is the year or years of the data. We have two products that contain data only from the 2000 census, one that has data only from the 1990 census, and two more that are trend reports containing comparable data items for both decades.

Demographic Profile Summary

Census 2000 Profiles Menu (dp3_2k)
Demographic Profile 3, 2000 Census. Most detailed profile, based on sample (long form) data. Subject matter includes age, race, income, poverty, education, commuting, household types, and housing values. The tables include a special column that contain hyperlinks to display complete SF3 tables upon which the extracts are based.
Census 1990-2000 Trends Menu (dp3_2kt)
Demographic Profile 3 Trend Reports, 1990 & 2000 Census. Basic demographic indicators based on sample (long form) data showing their values from the two decennial censuses and the change over the decade. Probably the most useful report in the series. (US, MO, IL, KS)
Demographic Profile 1, 2000 Census (dp1_2k)
Less detailed profile, based on complete count (short form) data. Subject matter includes just the basics, including age, race, household types, and tenure. For most geographic areas the report also shows the 1990 population and the change over the decade. (US, MO, IL, KS)
Demographic Profile 3, 1990 Census
Detailed profiles based on sample (long form) data from the 1990 census. Subjects include population, age cohort, race, household sizes & types, income, poverty, education, employment, occupation, housing, and more. These profiles may also be accessed via a "drill-down" menu system.