The total population of Grenville is estimated to be 68 with 37 males (54.41%) and 31 females (45.59%). There are 6 less females than males in Grenville.
In 2022, the population of Grenville was 47, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Grenville's population was 47, an increase of 2.17% compared to a population of 46 in 2020.
The median age in Grenville, SD is 57.4, as per 2021 ACS 5-Year Estimates. Of the total population, 0.00% were under the age of 15, 6.25% aged 15 to 29, 64.06% aged 30 to 64, 29.69% aged 65 to 84, and 0.00% were 85 years of age and older.