[4] Gilman City was platted in 1897 when the railroad was extended to that point.

[5] A post office called Gilman City has been in operation since 1897.

[5] The city would continue to grow up until the removal of the railroad, which led to the slow decline of the town.

[7] According to the United States Census Bureau, the city has a total area of 0.84 square miles (2.18 km2), all land.

[8] As of the census[10] of 2010, there were 383 people, 156 households, and 108 families living in the city.

25.6% of all households were made up of individuals, and 12.2% had someone living alone who was 65 years of age or older.

31.6% of all households were made up of individuals, and 19.0% had someone living alone who was 65 years of age or older.