Hi all,

I imagine many of us are busy diving into GUPS and getting started with the delineation work.  Obviously there are specific Census-defined thresholds for each type of statistical areas, but I’m curious to know if there are other criteria or principles that folks are using as they consider possible adjustments.

 

Historical continuity aside, what makes for a good block group or tract? Should we seek to minimize heterogeneity by drawing boundaries that separate very different neighborhoods/sub-neighborhoods?  Or is it better to have block groups/tracts that include a more diverse set of households and residents?  I would imagine that the approach taken to these questions will affect not only the confidence intervals of the resulting ACS tables, but also the results of whatever research uses those tables.  

 

Any opinions or literature references on this topic would be most welcome! 

 

Tim Reardon

Data Services Director
Metropolitan Area Planning Council, Boston

 

 

Hi friends of Census Tracts—

 

If it’s useful to you… Census Bureau has published a contacts list of 2020 Census PSAP participating agencies, here: https://www2.census.gov/geo/pdfs/partnerships/psap/Primary_PSAP_Participant_Contact_Information.pdf

This list covers every county in the nation. 

 

If the listing for your county points to an erroneous agency or a nonworking phone number/email, I suggest you alert Census’s Geog Division:  geo.psap@census.gov

 

 

By the way, our office, Metropolitan Council of the Twin Cities, has a few upcoming meetings where we’ll be describing our review, validation and redrawing of Census Tracts and Block Groups. We are well into the preliminary work. Starting in March we will be pointing interested stakeholders to preliminary, proposed re-tracting for our 7-county region.

 

And we will be inviting stakeholders to comment or express their needs for Census stats tabulations for sub-city zones, service areas, etc. We will consider whether those needs can possibly be met with 2020-vintage Tracts and Block Groups.

 

It’s possible we may receive some comments from outside of our region. When that happens, we will be redirecting commenters to the other county governments and regional development commissions in our state…  May want to bookmark the participants list mentioned above!

 

Hope that helps.

 

Cheers,

Todd Graham

 

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