My initial though is that sounds very specific. The national census provides a useful selection of lists by which to categorise the population and this would give you the advantage of knowing the numbers in each category (albeit currently 8 years ago). Census data validates any decision to overlook a category as irrelevant to your community, for example in my parish, a population of 730 includes 8 non-white people of differing heritages, so, whilst we don't deny or ignore their role, we do not make specific provision for them.
The census provides important information about groups such as those with a long-term health condition and those who care for them. With the increasing focus on the value of combatting loneliness and isolation, these people are now key groups in strategic planning.