Trosky is a city in Pipestone County, Minnesota, United States.

[6] According to the United States Census Bureau, the city has a total area of 1.409 square miles (3.65 km2), all land.

The racial makeup of the city was 95.3% White, 1.2% Native American, and 3.5% Asian.

25.6% of all households were made up of individuals, and 10.3% had someone living alone who was 65 years of age or older.

21.7% of all households were made up of individuals, and 13.0% had someone living alone who was 65 years of age or older.

Trosky is located in Minnesota's 7th congressional district, represented by Collin Peterson, a Democrat.