Hi @vivaparty – Sorry to hear you’re running into this issue with the Square plugin.
In order for a business location to appear in the location list in the Square plugin, your location must be a) Active in Square and b) must have credit card processing enabled.
As a first step, I’d recommend checking your Square account / getting in touch with Square to verify that the location is active and has credit card processing enabled.
If you have confirmed that your business location is active and you have enabled card processing for that location, but you are still not seeing the location listed within your Square plugin, could you please provide a copy of your site’s System Status? You can find it via WooCommerce > Status. Select “Get system report” and then “Copy for support”.
As a future note, you posted this in the general WooCommerce core support forum. The Square plugin actually has its own support forum here.