- The Supplemental Poverty Measure (SPM) is the newest method to paint a more accurate picture of the scope of poverty in the United States than the Official Poverty Measure (OPM). In doing so, the SPM includes many sources of income, including income from work and in-kind government supplemental policies. The purpose of this thesis was to use data from the Current Population Survey’s Annual Social and Economic Supplement (ASEC) to determine the child poverty rate in Oregon, understand which demographic groups are at greatest risk for poverty, and identify which programs of the social safety net were most effective in mitigating poverty. This data was subsampled to include Oregonians under the age of 18, which was then analyzed to determine poverty rates among race, age, family size, and citizenship categories. Additionally, hypothetical poverty rates were created to assess how overall rates of poverty would change without a program in place, showing its impact on child poverty rates. Overall, it was found that American Indian children and children with small family sizes were impoverished at greater rates than other Oregon children. Additionally, tax credits, like the Earned Income Tax Credit, and food subsidies, like the Supplemental Nutrition Assistance Program, had the most positive effects on reducing rates of poverty among all Oregon children, while out-of-pocket child care and work expenses increased the prevalence of poverty.