Finderne, NJ has a population of 6,336 and is the 5,559th largest city in the United States. The population density is 1,549 per sq mi which is 154781% higher than the New Jersey average and 1610% higher than the national average. The median age in Finderne is 39 which is approximately 2% lower than the New Jersey average of 40. In Finderne, 54% of the population over 15 years of age are married, 52% speak English and 20% speak Spanish. 44% of Finderne residents were born in New Jersey, 17% were born out of state, 0% were born outside of the United States and 38% were foreign born.