The Carlton County Courthouse in Carlton, Minnesota, United States, is the county seat of Carlton County, Minnesota. The county seat was originally located in Cloquet, with a jail located at the town of Northern Pacific Junction. In 1890, residents of Northern Pacific Junction raised funds to build a courthouse, which was a two-story brick building with a high-pitched gable roof. The current building took about two years to build, being completed in 1924. It is a three-story building with cream-colored brick and stone.