In 2022, the population of Mentor was 105, a 0.00% decrease year-by-year from 2021. Previously, in 2021, Mentor's population was 105, a decline of 1.87% compared to a population of 107 in 2020.
The median age in Mentor, MN is 46.5, as per 2021 ACS 5-Year Estimates. Of the total population, 17.57% were under the age of 15, 22.30% aged 15 to 29, 40.54% aged 30 to 64, 18.92% aged 65 to 84, and 0.68% were 85 years of age and older.