There are some similarities between the two concepts of community and aggregate. Both are populations of people who are associated with each other and share some characteristics. However there are also differences between the two concepts. The largest difference is in the interaction between the two. An aggregate of people are a population who share a common interest, where those in a community do not necessarily share common interests, it is likely to be other factors which unite them. Both those in an aggregate and those in a community share common problems and often common goals. The difference between the two concepts is that those in an aggregate do not act together to realize these goals or solve their problems whereas those in a community do interact and work together in this pursuit (Undergraduate Curriculum Handbook, 2003).
An example of an aggregate within the community is homeless clients (Clark, 2002). There are many homeless people across America and there are many subdivisions within the aggregate. The aggregate could be considered in terms of various subgroups such as homeless children, homeless women, homeless immigrants and so forth.