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How can I find a list of the GPS coordinates of the geographic center of each US county?

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    Not sure about an existing list, but why not get a layer of US counties and take the centroids and convert them to lat/long and create your own?? – Branco Feb 19 '15 at 16:26
  • I doubt you will find such a confirmed list. The two answers thus far rely on obtaining polygon data from a source and using it to calculate centroids. Their accuracy is going to depend on the mapping source/method/accuracy that went in to creating them. If you're looking for confirmed coordinates, it would have to be done from survey level/grade data. And it depends on what datum you're using. So what are you looking for - just centroid coordinates as the answers give, or actual confirmed GPS coordinates in a particular CRS/datum? – Chris W Feb 19 '15 at 22:05
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If you have ArcGIS Desktop, you can follow the directions below and it will take about 5 minutes.

  1. Download US Counties from ESRI
  2. Follow ESRI's instruction at HowTo: Find the centroid of polygons using Calculate Geometry
  3. This results in a table of Latitude and Longitude attributes as well as points for the centers on your map.

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I found this wikipedia page very helpful: https://en.wikipedia.org/wiki/User:Michael_J/County_table It shows a list of all us counties with their center coordinates (and a lot more information).

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The county features in the geodatabases found here contain two columns (INTPTLAT and INTPTLON) that represent the centroid of the county. I used several state geodatabases but have not attempted to verify the accuracy of the centroids listed.

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Use Google Geocoding API: https://developers.google.com/maps/documentation/geocoding/intro

Search ", county"

This returns the lat / long of the geographic center from what I can tell.

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  • note that they longitude contains a long dash "–" instead of a negative sign "-". Also looks like a typo for at least one location in Alaska – N Brouwer Apr 17 '18 at 14:52
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You can also use the data which is provided by United States government in here.

Although for using it you need to clean it first. Some counties names are not correctly written as they consist of non-English alphabets.

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