Wichita Falls vs urban center

Wichita Falls and urban center both are nouns.

Word	Noun	Adjective	Verb	Adverb
Wichita Falls	Yes	No	No	No
urban center	Yes	No	No	No

Wichita Falls (noun)	urban center (noun)
a city in north central Texas near the Oklahoma border	a large and densely populated urban area; may include several independent administrative districts