SEO Q&A - Changing from UK to US Hosting
Does it matter if i change my host from a UK to a US host, but keep the domain address the same, like www.website.co.uk?
More web sites than you think change their IP addresses by moving to new servers each day. As long as your IP address doesnt change on a daily basis the web sites pagerank and rankings will not be affected dramatically.
However, Google Local decides on selecting the web sites for local searches depending on the TLD (Top Level Domain). For example, UK search for “plumbers” will favour a co.uk instead of .com TLD and also where the server and IP address is.
So to keep your data in the UK for this type of search would favour your web site.