urban planning vs city planning

urban planning and city planning both are nouns.

Word	Noun	Adjective	Verb	Adverb
urban planning	Yes	No	No	No
city planning	Yes	No	No	No

As nouns, urban planning and city planning are synonyms defined as:

urban planning and city planning: determining and drawing up plans for the future physical arrangement and condition of a community

Other synonyms of urban planning include town planning.

urban planning (noun)	city planning (noun)
determining and drawing up plans for the future physical arrangement and condition of a community	determining and drawing up plans for the future physical arrangement and condition of a community
the branch of architecture dealing with the design and organization of urban space and activities