Five tractor-trailers traveling on Interstate 29 were flipped before the tornado hit Thurman.

[4] According to the United States Census Bureau, the city has a total area of 0.56 square miles (1.45 km2), all land.

[5] As of the census of 2020,[7] there were 167 people, 67 households, and 45 families residing in the city.

As of the census[8] of 2010, there were 229 people, 80 households, and 60 families living in the city.

16.3% of all households were made up of individuals, and 3.8% had someone living alone who was 65 years of age or older.

As of the census[9] of 2000, there were 236 people, 81 households, and 60 families living in the city.

The racial makeup of the city was 99.15% White, 0.42% Native American, 0.42% from other races.

18.5% of all households were made up of individuals, and 6.2% had someone living alone who was 65 years of age or older.

About 7.0% of families and 16.4% of the population were below the poverty line, including 17.8% of those under the age of eighteen and 52.6% of those 65 or over.