5.29% of the population for whom poverty status is determined in Port Monmouth, NJ (161 out of 3.05k 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 Males 65 - 74, followed by Females 75+ and then Females 55 - 64.

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

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.