Kimmswick is a city in Jefferson County, Missouri, United States.

According to the United States Census Bureau, the city has a total area of 0.23 square miles (0.60 km2), all land.

[citation needed] Kimmswick was platted in 1859 by Theodore Kimm, who gave the town his last name.

The racial makeup of the city was 90.4% White, 1.3% African American, 6.4% Asian, and 1.9% from two or more races.

The Kimmswick Apple Butter Festival is an annual Fall celebration and the city's largest event with typically over 100,000 visitors attending.

The streets are lined with 500 – 600 food, drink and craft vendors as well as live entertainment throughout the town including bluegrass, country rock, and dulcimer music.

While there is some parking in the ballfields on Highway K as you enter the festival, visitors are encouraged to park at nearby Windsor High School where there will be buses running throughout the day shuttling visitors to-and-from the festival.

The festival is scheduled each year at the end of October [11] Kimmswick is within the Windsor C-1 School District.