Galion, OH has a population of 10,245 and is the 3,876th largest city in the United States. The population density is 1,389 per sq mi which is 439% higher than the Ohio average and 1434% higher than the national average. The median age in Galion is 41 which is approximately 5% higher than the Ohio average of 39. In Galion, 60% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 80% of Galion residents were born in Ohio, 17% were born out of state, 1% were born outside of the United States and 2% were foreign born.