Geneva-on-the-Lake, OH has a population of 1,352 and is the 13,309th largest city in the United States. The population density is 616 per sq mi which is 139% higher than the Ohio average and 579% higher than the national average. The median age in Geneva-on-the-Lake is 43 which is approximately 10% higher than the Ohio average of 39. In Geneva-on-the-Lake, 49% of the population over 15 years of age are married, 95% speak English and 3% speak Spanish. 71% of Geneva-on-the-Lake residents were born in Ohio, 25% were born out of state, 0% were born outside of the United States and 4% were foreign born.