2.6% of the population for whom poverty status is determined in Grinnell Public Schools Unified School District 291, KS (16 out of 615 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 65 - 74, followed by Females 55 - 64 and then Females 75+.

The most common racial or ethnic group living below the poverty line in Grinnell Public Schools Unified School District 291, KS is White, followed by Black 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.