Harmony township is located in Edmunds County, South Dakota. Harmony township has a 2026 population of 285. Harmony township is currently declining at a rate of -0.7% annually and its population has decreased by -1.38% since the most recent census, which recorded a population of 289 in 2020.
The median age in Harmony township is 68.4 years: 67.3 years for males, and 69.1 years for females. For every 100 females there are 32.5 males.
Data after 2023 is projected based on recent change
Overall: 68.4 years
Female: 69.1 years
Male: 67.3 years
There are 110 adults, (84 of whom are seniors) in Harmony township.
Female: 83 (75.5%)
Male: 27 (24.5%)
The racial composition of Harmony township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 110 | 100% |