22.3% of the population for whom poverty status is determined in Harrisburg Community Unit School District 3, IL (2.49k out of 11.2k 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 Females 25 - 34, followed by Males 45 - 54 and then Females 55 - 64.

The most common racial or ethnic group living below the poverty line in Harrisburg Community Unit School District 3, IL 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.