Pleasantville, NJ has a population of 20,532 and is the 2,115th largest city in the United States. The population density is 3,589 per sq mi which is 358790% higher than the New Jersey average and 3861% higher than the national average. The median age in Pleasantville is 35 which is approximately 10% lower than the New Jersey average of 40. In Pleasantville, 41% of the population over 15 years of age are married, 56% speak English and 38% speak Spanish. 56% of Pleasantville residents were born in New Jersey, 16% were born out of state, 5% were born outside of the United States and 23% were foreign born.