Westphalia is a city in Osage County, Missouri, United States.

[4] It is part of the Jefferson City, Missouri Metropolitan Statistical Area.

Westphalia is heavily influenced by the German heritage of the majority of its inhabitants.

Many of the early settlers of the area came from the Westphalia region of Germany, hence the name.

[8] St. Joseph Church was listed on the National Register of Historic Places in 1972.

[9] Westphalia is located on US Route 63 approximately 12 miles southeast of Jefferson City.

[10] According to the United States Census Bureau, the city has a total area of 0.53 square miles (1.37 km2), all land.

The racial makeup of the city was 97.81% White, 0.31% African American, and 1.88% from two or more races.