Leesburg, OH has a population of 1,421 and is the 13,018th largest city in the United States. The population density is 1,216 per sq mi which is 372% higher than the Ohio average and 1243% higher than the national average. The median age in Leesburg is 39 which is approximately 1% lower than the Ohio average of 39. In Leesburg, 51% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 87% of Leesburg residents were born in Ohio, 12% were born out of state, 0% were born outside of the United States and 0% were foreign born.