Shiloh, NJ has a population of 349 and is the 21,632nd largest city in the United States. The population density is 290 per sq mi which is 28907% higher than the New Jersey average and 220% higher than the national average. The median age in Shiloh is 45 which is approximately 14% higher than the New Jersey average of 40. In Shiloh, 59% of the population over 15 years of age are married, 95% speak English and 4% speak Spanish. 79% of Shiloh residents were born in New Jersey, 17% were born out of state, 1% were born outside of the United States and 2% were foreign born.