Lower class income

The lower class is typified by poverty, homelessness, and unemployment . People of this class, few of whom have finished high school, suffer from lack of medical care, adequate housing and food, decent clothing, safety, and vocational training.

a class of people below the middle class, having the lowest social rank or standing due to low income, lack of skills or education, and the like . (broadly) working class.

Lower social class, those at or near the bottom of the socio-economic hierarchy ; also known as the underclass, and may include many of those at the bottom of the working class.