5.4% of the population for whom poverty status is determined in Brookfield, IL (1.04k out of 19.3k 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 65 - 74 and then Males 45 - 54.

The most common racial or ethnic group living below the poverty line in Brookfield, IL is White, followed by Hispanic and Other.

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.