Colored polygons for all of the counties in the United States. Click on the county to see its name.
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22 comments to US County Polygons |
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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.
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”
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.
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!
You won’t be able to extract the counties. I’m not sure exactly what you need for fusion tables.
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..
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!
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.
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!
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.
Is there an easy way to navigate into and check only specific counties for viewing as opposed to randomly searching through the grid?
jlo…..sorry…no easy way to search and check only specific counties.
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!
The county polgons SHP files can be downloaded from here.
http://nationalatlas.gov/atlasftp.html?openChapters=chpbound#chpbound
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!
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.