CodeIgniter - American Community

I think it's great that users that don't speak English as their first language have user groups where they can converse more easily in their native tongue.

I don't really see the necessity for a US or American regional group because frankly the entire forums is our user group.

I would suggest you check out meetup.com and join PHP and web development user groups in your area. You may find some other people using CodeIgniter in those groups. Maybe if there are enough of them you could even form a local CodeIgniter users group.