Charles,
Wessex (Http://www.wessex.com) has a product called Profiler. It has
1990 census data that is exportable in dbf. You can export in block groups,
zipcodes, cities, msa and more. I've used it to extract census data for
acquiring population under coverage for jurisdictions. It costs roughly $500
dollars.
This does not solve the boundary issue. So Wessex also has Streets
5.0, which contain converted Tiger/Line in ERSI or MI format. I've purchased
Wessex data for years now. The number of files types included have grown and
the product still costs the same $1500. This includes block group files. The
multi-user licensing is very reasonable and the simplicity of the data suits
most needs, unlike the $30,000 enhanced street data. For my own purposes, I
would then join up the name field from the dbf and the boundary files.
If you need newer block group data, Wessex also has Profiler
Estimates and Projections for 1997,2002,and 2007. This data is verified by
several agencies to make sure every level matches(all counties = state, all
states = us). This data has to be bought for either block groups or
zipcodes. The block group level allows you access to zipcodes, but not
vice-versa. It also has the additional exports like cities, states,
counties, etc.
Dion Duran
Lead Programmer Analyst
GIS - Houston
Metricom, Inc.
281-873-3430
[EMAIL PROTECTED]
-----Original Message-----
From: Charles Huyck [mailto:[EMAIL PROTECTED]]
Sent: Thursday, March 25, 1999 8:14 PM
To: [EMAIL PROTECTED]
Subject: MI Sum:TIGER Block data-all US.
Thanks for the help everybody, I guess I was a little unclear.
I need the whole country (translated, not in TIGER format). The actual
whole country, not access to the whole country, but the whole country on
file for use in an application. I have a very nice translation utilities,
TGR2MIF,TGR2SHP. I didn't want to have a huge batch file ka-chunking away
on my computer forever, have to write a batch import program for the mifs,
do mega appends, download stuff from the internet, and all that junk. To
be fair, I have tried the newer TGR2MIF /TGR2SHP and found them to run
much, much faster.
Several people responded and it seems there are cheaper solutions then
going through the census:
Cross streets has TIGER 97 in ArcView, $425.
Avenza has it in .mif ($345) and .shp. ($295). Cheaper if you have
MapPublisher
Blue Marble sells what appears to be TGR2MIF and TGR2SHP bundled with
TIGER97 data, at a bargain price.
http://www.bluemarblegeo.com/datatiger97mapkit.htm
The Geolytics solution seems to require unzipping and translation, they
have managed to get it all on one CD.
http://www.geolytics.com/cdblocks/cdblocks.htm
Other sources of TIGER95 or TIGER97 data are:
topodepot.com
www.manifold.net
and of course!
www.esri.com ,
but these require the big translation.
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