Wall Lake, IA
Wall Lake is a city in Sac County, Iowa, United States. The population was 841 at the 2000 census.
Wall Lake is located at 42°16′16″N 95°5′30″W / 42.27111°N 95.09167°W / 42.27111; -95.09167 (42.271141, -95.091724).
According to the United States Census Bureau, the city has a total area of 1.1 square miles (2.8 km²), all of it land.