The total population of West Sullivan is estimated to be 260 with 131 males (50.38%) and 129 females (49.62%). There are 2 less females than males in West Sullivan.
In 2022, the population of West Sullivan was 276, a 1.08% decrease year-by-year from 2021. Previously, in 2021, West Sullivan's population was 279, a decline of 1.06% compared to a population of 282 in 2020.
The median age in West Sullivan, MO is 23.2, as per 2021 ACS 5-Year Estimates. Of the total population, 28.46% were under the age of 15, 31.15% aged 15 to 29, 25.00% aged 30 to 64, 15.38% aged 65 to 84, and 0.00% were 85 years of age and older.