"diversity of needs" is a correct and usable phrase in written English.
You can use it when you want to refer to the fact that different people have different needs. For example, "This organization is committed to providing solutions that meet the diversity of needs of its clients."
"The biggest problems I find are a lack of clear communication and not looking at the diversity of needs among family members," she said.
But this is still not enough diversity of housing to meet the diversity of needs and preferences in the housing market.
"My hope is, even though the museum is only showing American art, it can still reflect a diversity of interests and diversity of needs in a region as interesting and engaging as the Montclair region".
Even in prosperous societies the scale and diversity of needs is such that the formal social services are obliged to utilize and support informal systems of social care and mutual aid.
The educational culture of targets and testing places enormous pressure on school staff who have to manage large classes of children of mixed abilities, and with a huge diversity of needs.
With the Greens darting in and out of various areas where the contest would otherwise seem too conventional... Is this not a healthy development, since it recognises a diversity of needs for different parts of the nation?
Morally, it made sense: two polarized parties cannot sufficiently represent the diversity of need across a quickly changing electorate.
The diversity of contexts, needs, means and situations illustrated through this study indicates that no pre-prepared materials can ever meet the needs of any given class precisely.
The importance of understanding of the diversity of the needs of those who receive housing benefit ought not to be overlooked.
No single theory of learning or teaching is likely to satisfy the diversity of individual needs and societal arrangements.
Within my own institution, the University of Warwick, we are constantly reviewing, monitoring and shaping our services to reflect the breadth and diversity of student needs and behaviours.
