Meeting Centre of Gravity for ZIP Codes
Use this tool to find the best place to hold a meeting for its attendees by inputting their US ZIP Codes. The COG tool will then work out the centre of gravity for the meeting. This will be represented by a marker on the map.
Meeting COG Map
Loading Map
Input Data
Input a list of US ZIP Codes. Each ZIP Code should be exactly 5 digits long. At least two ZIP Codes are required to calculate the centre of gravity.
Further Information
Once you input the ZIP Codes, this tool will work out where the best place is to hold the meeting. This will be a point on the map where, if all attendees could travel in a straight line to get to, would give the least combined travel time for them to meet up.
Yes, of course people can't travel in straight lines and they can't hold the meeting in a field, in the sea or in some stranger's house if that is what the tool suggests. You are then expected to use that as a base from which to find a meeting venue close by, be it a bar, park or hotel, etc.
Let us know if this tool comes in useful to you by posting a comment below. It will be interesting to find out how it is used.
Future Improvements and Ideas
- Allow upload of a list of ZIP Codes
- Show the nearest public place to the COG marker (restaurant, park, etc.)
- Show the distance between each point and the COG point
- Allow each ZIP Code to be weighted to allow variation in priority
Relevant Links
Version History
- 12th October 2022 : Version 3.2 - Bug fixed when no ZIP Codes are found
- 29th January 2019 : Version 3.1 - Bug fixed for ZIP Codes not found
- 11th January 2019 : Version 3.0 - Changed to Leaflet Maps
- 7th September 2016 : Version 2.2 - Markers now have the number label for each ZIP displayed at all times
- 12th February 2016 : Version 2.1 - Each marker now shows the relevant ZIP Code when you hover over it
- 13th November 2013 : Version 2.0 - Implemented Google Maps API V3
- 4th February 2009 : Version 1.1 - Fix Clear button issue and add polyline overlay
- 12th November 2008 : Version 1.0 - Initial release
Comments
it doesn't give me the zipcode of the found COG
Is there a way to find center of gravity for MORE THAN 10 locations?
Weighting (number of people per zip code) would be a nice feature.
Being able to import an excel file of zip codes will make this tool valuable.
great tool, thanks!
Says finished processing, but I don%u2019t see any results after entering 8 zip codes, other than %u201CGet Directions%u201D now displayed to the right of each zip code entered.
love it. great work by the developers. Couldnt find other tools that allowed more than 2 addresses.
this very good
Hey, can you do one for Singapore?
Daniel, sorry, that is not possible.
Any way to use this for more than 10 participants?
Hi, we have no way to find places/businesses on this page. You could use the map to find a town name, then use a search engine to find restaurants in that town.
Is there a way to see what restaurant is at that mid-point for a church gathering of about 20 people? I've located the mid-point but wonder how do I find out restaurants in that area? Thx
I am also interested in uploading (or pasting) 200-300 zip codes. Our school is considering renovating, and they would need a temporary school for a year or more.
Exactly what we needed...except we need to upload zip codes...we have 275 of them we need to find a geo centric location for
Nichole, a bug was found to hang it if an unrecognised ZIP code was input. This is now avoided and it will finish then display the ZIP code that cannot be found.
I only put in 5 zip codes. Received an immediate error but continuously says loading.
It should now work again.
I put in six zip codes. The tool does not give me results. It continues to say "loading"
Excellent tool! I'm using it for our Coast Guard Auxiliary unit to explore what meeting locations would be most suitable for our group. Like others, I would like to see the number of zip codes expanded, actual driving routes included as an option, and possibly including the ability to input street addresses rather than just zip codes, but like I said, it really is an excellent tool!
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