[6] Timber Lake was founded in 1910 with the arrival of the Chicago, Milwaukee, St. Paul and Pacific Railroad into the area.

On April 21, 1946, a large tornado struck the area in and around Timber Lake.

However, this is outside the period of reliable documentation accepted by the National Weather Service; 1950–present.

[9] According to the United States Census Bureau, the city has a total area of 0.41 square miles (1.06 km2), all land.

The racial makeup of the city was 51.5% White, 43.1% Native American, and 5.4% from two or more races.

34.6% of all households were made up of individuals, and 16.2% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 60.72% White, 36.34% Native American, 1.13% Asian, and 1.81% from two or more races.