18.9% of the population for whom poverty status is determined in Harrington School District, WA (150 out of 795 people) live below the poverty line, a number that is higher than the national average of 12.5%. The largest demographic living in poverty are Males 6 - 11, followed by Males 35 - 44 and then Females 65 - 74.

The most common racial or ethnic group living below the poverty line in Harrington School District, WA is White, followed by Hispanic 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.