What country is DC from?

Excuse me, could you please clarify for me which "DC" you are referring to? Is it the abbreviation for the District of Columbia, the federal district and capital of the United States? Or perhaps you're referring to something else entirely? If it's the District of Columbia, then the country it's from is the United States of America. However, if I've misunderstood and you meant something else, please let me know and I'll do my best to assist you further.