Genoa City, WI has a population of 3,023 and is the 8,780th largest city in the United States. The population density is 1,147 per sq mi which is 1212% higher than the Wisconsin average and 1166% higher than the national average. The median age in Genoa City is 32 which is approximately 18% lower than the Wisconsin average of 39. In Genoa City, 54% of the population over 15 years of age are married, 92% speak English and 6% speak Spanish. 28% of Genoa City residents were born in Wisconsin, 68% were born out of state, 0% were born outside of the United States and 4% were foreign born.