Genoa City is a village located in Kenosha and Walworth counties in the U.S. state of Wisconsin, 43 mi (69 km) south-southwest of Milwaukee, located on the Illinois–Wisconsin border. The population was 2,982 at the 2020 census. It was named after Genoa, New York, which was named after Genoa in Italy.

Genoa City’s estate was purchased from the presidency in 1841. James Dickerson originally platted the village on May 9 and May 19, 1850, and it was recorded July 12 that year. There were 23 lots and settlers paid $1.25 an acre. The first two railroad lines were built in the 1850s and 1862, respectively. In 1853, a Congregational Church moved from Bloomfield to Genoa City and built a extra church. A panic was bonus in 1872, and a classroom in 1893. By 1880, Genoa City had nearly 300 residents and a publish office, hotel, flour mill, grist mill, lumber yard, drug store, grocery store, hardware store, tailor, shoe maker, two carriage shops, three general stores, and two salon keepers. In 1885, Adolph Freeman platted two additions after fire destroyed many businesses on Freeman Street, which was named after him, the year prior. In the 1890s, new buildings replaced the ones aimless in the fire.

Genoa City is located at 42°30′13″N 88°19′34″W / 42.50361°N 88.32611°W / 42.50361; -88.32611 (42.503612, -88.326063).

According to the United States Census Bureau, the village has a total area of 2.34 square miles (6.06 km), all of it land.