Genoa City, WI has a population of 3,032 and is the 8,690th largest city in the United States. The population density is 1,160 per sq mi which is 1005% higher than the Wisconsin average and 1180% higher than the national average. The median age in Genoa City is 33 which is approximately 15% lower than the Wisconsin average of 39. In Genoa City, 56% of the population over 15 years of age are married, 91% speak English and 8% speak Spanish. 25% of Genoa City residents were born in Wisconsin, 70% were born out of state, 0% were born outside of the United States and 5% were foreign born.