Identifying unincorporated Areas in the ACS

We are trying to create tables showing the percent of income spent on housing costs( e.g. Table  B25101)  for unincorporated areas in Colorado.  I was wondering if anyone has tried to do this.

One approach we thought of was a "top-down" method of taking the difference between the county estimates and the estimates derived from the incorporated area (taking municipalities that are in more than one county into account through the use of the "Place/Remainder" geography from

Another approach would be to use a "bottom-up" method that classified block groups according to their incorporated or unincorporated status.   The issue here is developing the criteria for classifying "partially incorporated" block groups.

I would appreciate any ideas about how one might approach this problem.



  • To identify the percent of income spent on housing costs in unincorporated areas and unincorporated communities in Colorado, consider a hybrid method. Combine the "top-down" approach, adjusting county estimates for incorporated areas, with a "bottom-up" strategy. For the latter, classify block groups based on incorporated or unincorporated status, allowing for a nuanced classification for "partially incorporated" groups, including those within unincorporated community. This hybrid model leverages both macro and micro perspectives, offering a comprehensive view. Ensure criteria for classifying block groups are well-defined to maintain accuracy. This integrated approach can enhance the accuracy and relevance of your housing cost analysis for unincorporated areas and communities.

  • Please discuss the data processing you would use to do this.

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