Coldstream, OH has a population of 1,236 and is the 13,858th largest city in the United States. The population density is 444 per sq mi which is 72% higher than the Ohio average and 390% higher than the national average. The median age in Coldstream is 48 which is approximately 21% higher than the Ohio average of 39. In Coldstream, 77% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 68% of Coldstream residents were born in Ohio, 30% were born out of state, 0% were born outside of the United States and 2% were foreign born.