The total population of Quinwood is estimated to be 155 with 91 males (58.71%) and 64 females (41.29%). There are 27 less females than males in Quinwood.
In 2022, the population of Quinwood was 215, a 1.38% decrease year-by-year from 2021. Previously, in 2021, Quinwood's population was 218, a decline of 1.36% compared to a population of 221 in 2020.
The median age in Quinwood, WV is 57.3, as per 2021 ACS 5-Year Estimates. Of the total population, 7.91% were under the age of 15, 7.91% aged 15 to 29, 58.27% aged 30 to 64, 23.02% aged 65 to 84, and 2.88% were 85 years of age and older.