Welcome, ejbarron!
Thanks for using Apple Support Communities! I understand you'd like to change the default country for your contacts. I know it's important to have your contacts displaying properly, and would like to help.
Is your iPhone region set to the United States or Netherlands? If it's set to Netherlands, your contacts will automatically default to the same country.
To check the region on your iPhone, navigate to Settings > General > Language & Region.
Take a look at the following support article for help with managing your contacts:
Manage and delete contacts on your iPhone, iPad, or iPod touch - Apple Support
You can also submit feedback to Apple here: Product Feedback - Apple
Take care!