Unfortunately I dont have any others here to try.

I just use the BT supplied one and then have my own wifi network, controller, switch etc.

In reply to a post by jchamier:

In reply to a post by oldskool:

I've tired both wifi and ethernet

Great, if it was WiFi only then you could blame Google's wifi mapping technology getting something wrong.

On iplocation.io it is comprehensive but every single match gets me correctly located, some of them right down to my town.
Its happening on other peoples devices in the house which is totally independent of any plugin or vpn I've installed.

This means the various geolocation databases are correct for the IP addresses that BT has assigned to your connection, and means the problem is with Google. Perhaps try using Bing or DuckDuckGo to work around the problem.

IPv4 addresses have run out, so internet providers around the planet buy and sell from each other blocks of addresses. It is possible the address you have from BT was previously located in the USA.

Try sending Feedback to Google:
https://support.google.com/websearch/answer/6223687

Thanks this sounds very logical and is probably what's happening.

I hoped that renewing my IP a couple of times would solve it but despite changing, it didn't. Perhaps I'm still falling into a block of IP's that were previously located in the U.S.

I did submit a ticket to google last week about this but nothing changed / no reply. I forced an ip change since, each time located in a part of Washington DC strangely.

I'll try one my time and if its still an issue, leave it connect and also submit it to Google to see if they resolve it.

p.S. Bing is all good.

In reply to a post by amiga_dude:

I sort had this problem but only when I go on my travles to the USA. I have own travel router that VPN in to my network in UK. So Laptops,Phones, Tablets, Firesticks connect to travel router. So when come back from USA and back in UK Google thinks my IP is located in USA. The advertising in USA lot more then we do get in UK (lot medicaid, medicare, federal rebate for solar add's on Youtube)

I took about 3 weeks being back in UK until started getting any UK adds again.

And yes it is annoying. Just prefix all searches with UK

Good idea! I read about this too, a location can stay sticky to your google account for some time and I cleared all my cache and history.

In my case it's happening on other peoples devices so I'm certain it is linked to my ip.

I occasionally have a message pop up on Google saying something like 'please confirm this is your location to receive relevant results' and a map which IIRC is in Washington State.

In reply to a post by FibreBubble:

Have you tried a different router as I think Google uses it's mapping cars to gather wifi locations.

??? They would have to logon to the wifi to even get an IP address from DHCP. so I don't see how this could work.

Google passively pick up the MAC of the base station (BSSID) when the mapping cars drive past. The cars know where they are.

Turning off broadcasting your network name doesn’t protect from this.

If you use Google services then access something like Google Maps while you're on your Wi-Fi and let it determine your location - it should then associated your GPS position with your BSSID and the ISP you're using.

Also make sure that any privacy features like iCloud Relay are off.

Google probably knows where you live.

As the OP has reported the problem affects different devices, is happening when his IP address is changed and only affects Google. The router being mis-located by Google is my guess as to what is happening.

In reply to a post by jchamier:

Google passively pick up the MAC of the base station (BSSID) when the mapping cars drive past. The cars know where they are.

Turning off broadcasting your network name doesn’t protect from this.

The BSSID is agreed to be a MAC address. But it is the MAC address of the wifi interface and therefore inside the user's own network. MAC addresses are not seen across a routed interface, so I don't see that Google or anyone would have access to it across the public internet. If they can, I would be interested to know how they do that. But they would need to see the MAC address across the public internet to be able to correlate with the MAC address they see from the Google car.

In reply to a post by oldskool:

This is BT FTTP. I saw a new ipv4 each time I tried but not sure about ipv6

My guess is that you are connecting with IPv6, since both BT and Google use it. IPv6 is easier to geolocate due to ISPs usually registering a massive number of IPs in one CIDR rather than the piecemeal approach they need to use for IPv4.

But it's possible BT have a relatively new IPv6 CIDR that Google haven't caught up with yet.