Start with a clear understanding of your assignment: Write a paper that compares the demographics of your neighborhood with 2 different neighborhoods, etc. Read the assignment carefully and ask for clarification if you need it.
You also have an assignment on "what it means to be you," which will also require some library research.
Think about what you already know from your own experience or from friends and media.
Get background information on the topic from reference encyclopedias and handbooks.
...have you budgeted for your final project - total hours spread over the next weeks?