11.4% of the population for whom poverty status is determined in Corsica-Stickney School District 21-3, SD (230 out of 2.01k people) live below the poverty line, a number that is lower than the national average of 12.5%. The largest demographic living in poverty are Females 75+, followed by Females 6 - 11 and then Males 12 - 14.

The most common racial or ethnic group living below the poverty line in Corsica-Stickney School District 21-3, SD is White, followed by Two Or More and Native American.

The Census Bureau uses a set of money income thresholds that vary by family size and composition to determine who classifies as impoverished. If a family's total income is less than the family's threshold than that family and every individual in it is considered to be living in poverty.