Antwerp, OH has a population of 1,522 and is the 12,604th largest city in the United States. The population density is 1,143 per sq mi which is 344% higher than the Ohio average and 1161% higher than the national average. The median age in Antwerp is 41 which is approximately 5% higher than the Ohio average of 39. In Antwerp, 62% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 67% of Antwerp residents were born in Ohio, 32% were born out of state, 0% were born outside of the United States and 1% were foreign born.