US County Polygons

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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Google Earth Library

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22 comments to US County Polygons

  • Douglas

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

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

      • Kendall

        I’ve found the original .shp file from the National Atlas site, and I’m checking it out with a viewer I picked up, but I’m at a total loss as to where to go from here. How did you convert this to gps coordinates? I would ask for the data already converted, but I’m also interested in learning the process myself so I can put it to use on other files from them.

        Sorry, I know this is two years late, but I just found this and it’s really caught my attention.

        Sounds like you want to convert the file to a GPX file. I’m not sure how you would do that. Try google “Convert SHP to GPX”

  • Safa

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

    • 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.

  • Safa

    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

    • 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.

  • 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??

  • 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!

    • 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.

  • 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.

  • 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..

  • Drew

    Hi, just wondering… Why are there a couple of blank spots? I notice at the tip of Floria and there is a big square space at the corners of South Dakota/Nebraska/Omaha.

    Are there no counties there? Let me know!

    • topomatt

      Thanks for pointing out missing ones. I fixed several of them. But I will probably need to reprocess the entire thing to fix the rest, including much of Alaska. No ETA when I will have that done.

  • Drew

    Thanks no problem. I do have another question. I am coloring groups of them for territories in matching colors. However when I close Google Earth my work has been erased they are back the way they were originally. How can I save my progress to achieve what I am trying to do? Many thanks!

    • topomatt

      I don’t think there is an easy way for you to change the coloring on your end. I think I’d probably have to recompile with different color. Or you’d have to get the source data and do the whole thing from scratch using your personalized coloring scheme.

  • jlo

    Is there an easy way to navigate into and check only specific counties for viewing as opposed to randomly searching through the grid?

  • Wiley Runnestrand

    Hi, I am interested in applying your data as one layer in Map window. Would it be possible to get the shapefile of this data instead of KML? Thanks!

  • Katharine Bill

    I would like to download the shape files for Okanogan and Ferry Counties only, preferably as outlines rather than solid colored polygons. Is this possible? Thank you!

    • topomatt

      If you want shape files for just a single county, you’d probably have to get the Shape files for entire US, and then edit out the counties you want. Or you might be able to get them from US Census website.

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