The total population of Gunn City is estimated to be 98 with 54 males (55.10%) and 44 females (44.90%). There are 10 less females than males in Gunn City.
In 2022, the population of Gunn City was 78, a 1.30% increase year-by-year from 2021. Previously, in 2021, Gunn City's population was 77, a decline of 1.28% compared to a population of 78 in 2020.
The median age in Gunn City, MO is 40.9, as per 2021 ACS 5-Year Estimates. Of the total population, 10.71% were under the age of 15, 14.29% aged 15 to 29, 58.33% aged 30 to 64, 13.10% aged 65 to 84, and 3.57% were 85 years of age and older.