Morgan here from the Social Media team at Shopify.
You can absolutely sell to the USA only. To do so, you will need to restrict your shipping to only be available for the USA. Here's how to do that once you have an account set up.
Go into Settings>Shipping.
From your shipping settings you will create zones for the areas you would like to ship to. Adding only a shipping zone for the USA and no other countries will restrict anyone from outside of the USA from checking out on your site. The result will simply show no shipping options for these clients.
If this sounds like something you may be interested in, here's also a really great guide to introduce yourself to drop shipping and starting a business.
The ultimate drop shipping guide.
Let us know if there's anything else you have questions about. We are happy to help!
yeah, just setup mutliple shipping zones for the areas you want to ship too
Can you dropship to the USA whilst operating in UK and can you still continue to sell in the UK?
So can you sell in USA and UK at the same time?