urban center vs Durango City

urban center and Durango City both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban center	Yes	No	No	No
Durango City	Yes	No	No	No

urban center (noun)	Durango City (noun)
a large and densely populated urban area; may include several independent administrative districts	a city in north central Mexico; mining center