Lake Winnebago is a city in Cass County, Missouri, United States.

There were 496 housing units at an average density of 217.5 per square mile (84.0/km2).

14.9% of all households were made up of individuals, and 7.7% had someone living alone who was 65 years of age or older.

There were 359 housing units at an average density of 190.5 per square mile (73.6/km2).

14.6% of all households were made up of individuals, and 6.6% had someone living alone who was 65 years of age or older.

None of the families and 1.6% of the population were living below the poverty line, including no under eighteens and none of those over 64.