I was working for a regional planning commission in the late 90's, and was
involved in a review of the tracts and block groups in southwest Missouri. Using
the Census Bureau's guidelines, we wanted to identify block groups and tracts
that made sense from the standpoint of locally identified communities and
neighborhoods. We paid particular attention to geographic features such as
roads, lakes, etc. that would contribute to identifying block groups and tracts
that would make sense for tabulation. Unfortunately, we lacked a lot of detailed
information on housing units and population counts in our rapidly growing rural
areas to be more precise with meeting population targets. However, the process
was not at all arbitrary - albeit I think it lacked the uniformity that you
would have in a major metro area with GIS base data, building permit tracking,
etc. to contribute to the process.
- Frank Miller
Please respond to rlamacchia(a)geo.census.gov
To: "Patty Becker" <pbecker(a)umich.edu>
cc: ctpp-news(a)chrispy.net (bcc: Frank O Miller/D8/MODOT)
Subject: RE: [CTPP] Some more points
For Census 2000, the participant statistical areas program
asked/allowed/encouraged all participants, nationwide, to review and suggest
changes to the the census tracts (including the former BNAs) and BGs. Some
participants did review and suggest changes to the BGs, many did not. Where
participants did not change the BGs, the geographers in the Regional Offices
made any necessary changes in accordance with the guidelines. The
guidelines used by participants are on the web at: