Aviva Directory » Local & Global » North America » United States » States » Wisconsin » Cities & Towns » Onalaska

Onalaska is a city in La Crosse County, Wisconsin. It borders the City of La Crosse directly to the north, and three unincorporated rural towns, one with the same name: Onalaska, Medary and Hamilton. The city is built on a slightly elevated ridge above the Black River, and includes a man-made reservoir at its western edge, known as Lake Onalaska.


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