In 2022, the population of Eden was 93, a 1.09% increase year-by-year from 2021. Previously, in 2021, Eden's population was 92, a decline of 1.08% compared to a population of 93 in 2020.
The median age in Eden, SD is 59.7, as per 2021 ACS 5-Year Estimates. Of the total population, 13.66% were under the age of 15, 6.21% aged 15 to 29, 64.60% aged 30 to 64, 14.91% aged 65 to 84, and 0.62% were 85 years of age and older.