The 38th Assembly district of Wisconsin is one of 99 districts in the Wisconsin State Assembly.

[1] Located in south-central Wisconsin, the district comprises parts of southern Dodge County and northern Jefferson County.

It includes the cities of Watertown, Jefferson, Juneau, and Horicon, and the villages of Clyman, Hustisford, Iron Ridge, Johnson Creek, Lowell, and Reeseville.

[2] The district is represented by Republican William Penterman, since January 2025; Penterman previously represented the 37th district from July 2021 to January 2025.

This article about a location in the state of Wisconsin is a stub.