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US County Polygons

December 2nd, 2009 Leave a comment Go to comments

Colored polygons for all of the counties in the United States.  Click on the county to see its name.

US County Polygons

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Categories: Statistics Tags: Boundaries, United States
  1. Douglas
    January 28th, 2010 at 03:18 | #1

    Where did this data come from? Is it available in tabular format?

    • January 28th, 2010 at 10:43 | #2

      The original data is SHP format. Contact me if you’d like to get it.

  2. Safa
    February 15th, 2010 at 20:13 | #3

    Hi, can I ask how was this made? how were the shapes generated?

    • February 15th, 2010 at 21:09 | #4

      Hi, can I ask how was this made? how were the shapes generated?

      I typically use several different programs to do these things. Global Mapper and MapWindow with Shape2Earth plugin to convert SHP files to KML and simplify polygons. MS Access or Excel to manipulate the DBF files, UltraEdit custom macros to automatically generate KML code. Click on Resources tab at top of web site for links to these, and many more programs.

  3. Safa
    February 16th, 2010 at 14:02 | #5

    Thank you, just one other thing, how did you make it so that you only see the polygons appear when you zoom in to a certain level? thanks again

    • February 16th, 2010 at 19:29 | #6

      Thank you, just one other thing, how did you make it so that you only see the polygons appear when you zoom in to a certain level? thanks again

      Global Mapper can do that kind of thing.

      Here is a sneak peek at something I’m working on now that is similar. However, this example shows the polygons when zoomed out all the way, then switches to a more detailed mode as you zoom in closer. This technique makes it possible to display very complex polygons in Google Earth.

      If you don’t want to try to figure it out on your own, I can probably help you for fee. Contact me here if interested.

  4. March 7th, 2010 at 07:49 | #7

    I’m a compete newb on mapping and was hoping to use fusion tables to provide some county level color coded data to google maps for Alabama. I gather I need kml files to outline the counties, I have found shape files but not KML files, which is what I believe is required.. Advice??

  5. March 7th, 2010 at 07:55 | #8

    duh!! I think I got it I downloaded your file (I did not understand that you had a file download with that big download with Google earth button)and I’m guessing I can just extract the Alabama counties!! Thanks!

    • March 7th, 2010 at 09:20 | #9

      duh!! I think I got it I downloaded your file (I did not understand that you had a file download with that big download with Google earth button)and I’m guessing I can just extract the Alabama counties!!

      You won’t be able to extract the counties. I’m not sure exactly what you need for fusion tables.

  6. March 7th, 2010 at 09:42 | #10

    Well you are right on that, looked at the file and am back lost! Per the fusion tables help file: http://www.google.com/support/fusiontables/bin/answer.py?answer=174680&cbid=174680&src=cb&lev=index
    Advice or guidance appreciated!! seems like the file I found linked to from “us-counties_nl.kml”>>”us-counties.kml” has the shapes in KML but don’t know how it gets the names??
    This from the google fusion page:
    Polygons or shapes

    I’m not sure how you’d get the polygons into Fusion. I think Fusion will do the geocoding automatically, so you might not even need polygons. Just a spreadsheet with country names. The polygon kml data I created is split into 100’s of tiles, so I doubt fusion would be able to use it anyway.

  7. March 8th, 2010 at 05:37 | #11

    Thank you for your response, as I said I’m a newb with this but I sort of thought that the KML can describe a polygon shape linked to lat long. the fusion tables seem to want the polygon in akml in a column so I think I’m looking for the 67 or so counties that make up Alabama. I don’t think it has anything to do with tiles? I was figuring if I could get the shapes I could “slit them into separate county levels,, the Geocoding that Fusion does allows for points, not shapes..

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