The likelihood of being among the working poor varies widely by occupation.
Workers in occupations requiring higher education and characterized by relatively high earnings, such as management and professional occupations, were least likely to be classified as working poor (2.0 percent) in 2002.
On the other hand, persons employed in occupations that usually do not require high levels of education and that are characterized by relatively low earnings were more likely to be among the working poor. For example, 10.3 percent of service workers were classified as working poor in 2002. Service occupations, with 2.2 million working poor, accounted for 29.3 percent of all those classified as the working poor.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Occupation and the working poor in 2002 at https://www.bls.gov/opub/ted/2004/oct/wk4/art02.htm (visited January 31, 2023).