The total population of Manville is estimated to be 174 with 115 males (66.09%) and 59 females (33.91%). There are 56 less females than males in Manville.
In 2022, the population of Manville was 90, a 2.17% decrease year-by-year from 2021. Previously, in 2021, Manville's population was 92, a decline of 0.00% compared to a population of 92 in 2020.
The median age in Manville, WY is 60.8, as per 2021 ACS 5-Year Estimates. Of the total population, 5.38% were under the age of 15, 16.92% aged 15 to 29, 36.15% aged 30 to 64, 36.92% aged 65 to 84, and 4.62% were 85 years of age and older.