8.56% of the population for whom poverty status is determined in Armour School District 21-1, SD (85 out of 993 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 25 - 34, followed by Males 18 - 24 and then Females < 5.

The most common racial or ethnic group living below the poverty line in Armour School District 21-1, SD is White, followed by Black and Two Or More.

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.