Rice Lake is a city in Barron County in northwest Wisconsin, United States, on the shore of the lake with the same name. The city is a co…Rice Lake is a city in Barron County in northwest Wisconsin, United States, on the shore of the lake with the same name. The city is a commercial and tourist center for the surrounding rural areas. As of the 2020 census, the city had a total population of 9,040. The city is located mostly within the Town of Rice Lake.