Bridgewater township is located in McCook County, South Dakota. Bridgewater township has a 2026 population of 120. Bridgewater township is currently declining at a rate of -0.83% annually but its population has increased by 2.56% since the most recent census, which recorded a population of 117 in 2020.
The median age in Bridgewater township is 13.7 years: 32.6 years for males, and 11.8 years for females. For every 100 females there are 66.4 males.
Data after 2023 is projected based on recent change
Overall: 13.7 years
Female: 11.8 years
Male: 32.6 years
There are 112 adults, (19 of whom are seniors) in Bridgewater township.
Female: 143 (60.1%)
Male: 95 (39.9%)
The racial composition of Bridgewater township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 238 | 100% |