Shiloh, OH has a population of 629 and is the 18,079th largest city in the United States. The population density is 695 per sq mi which is 146% higher than the Ohio average and 667% higher than the national average. The median age in Shiloh is 43 which is approximately 9% higher than the Ohio average of 39. In Shiloh, 60% of the population over 15 years of age are married, 94% speak English and 0% speak Spanish. 78% of Shiloh residents were born in Ohio, 18% were born out of state, 0% were born outside of the United States and 3% were foreign born.