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Locations - Cities Report

Visitor ✭ ✭ ✭
# 1
Visitor ✭ ✭ ✭

Hi all, 

 

Does anybody know how Google defines the geographical boundaries of each City in the Location report in Analytics?

 

E.g. when they list visitors from Seattle is that users within a 20 mile radius of Seattle or is it done by Zip Codes?  

 

Hope someone can give me some insight into how the city is defined

 

Thanks

 

Tim

2 Expert replyverified_user

Locations - Cities Report

Top Contributor
# 2
Top Contributor

Hi Tim,

 

I believe Google determines location via IP address. You may find more information in this blog post: http://www.lunametrics.com/blog/2013/03/19/locations-report-google-analytics/.

 

Hope this helps.

 

Nicky Yuen, Google Analytics Top Contributor
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Locations - Cities Report

Top Contributor
# 3
Top Contributor

Hi Tim,

Nicky's right. Many small companies and almost all medium-sized/large corporations have their own IP ranges by which their employees get access to the Internet. Given an IP address, information on the corresponding IP range and the relevant company (IP Whois) is generally available to the public through the regional Internet registries (RIRs) - e.g. ARIN [1] for US/Canadian IPs or the RIPE NCC [2] for European IPs. This kind of IP-registry data, mostly, is what we see in web-analytics reports on geography (country, region, city) and ISP/company names of our visitors.

There is also a nice online tool that may show you the differences between Google Analytics geolocation (i.e. where Google thinks you are) and your true location [3].

Christoph

 

[1] https://www.arin.net

[2] https://www.ripe.net

[3] https://www.stephanehamel.net/playground/galocation (allow browser access to your location when using that tool)

 

Locations - Cities Report

Visitor ✭ ✭ ✭
# 4
Visitor ✭ ✭ ✭

Thanks guys, that all makes sense, appreciate you taking the time to respond.

 

I guess my question then is what geographical boundary defines that location?  When an IP Address registers as 'Seattle' in Google Analytics, how far outside of Seattle could that address be before it is counted as a different City?

 

The reason for the question is that we're trying to tie together various different performance reports for different cities and for some reports we know the exact geographical boundaries of what constitutes Seattle but for Google we don't know whether in fact those users are all in the middle of Seattle or from a 30 mile radius of Seattle, or from a 50 mile radius of Seattle which makes a big difference.

 

It would be great to know what specific geography Google Analytics means when it lists 'Seattle', but I'm not sure if that data exists.