The phrase "income people" refers to individuals who earn money through their work or investments. These are the people who receive a regular income. Full definition
The goal may be I want to serve a greater number of low income people who have family law issues. (lawyerist.com)
The committee regularly evaluates legal needs of poor, low and moderate income persons in the community, and the best ways to meet those needs. (denbar.org)
I know a great number of very low income people who are great pet owners. (btoellner.typepad.com)