Shamrock Colony
- County:
- Beadle County
- County Seat:
- No
- Area (mi²):
- 0.648
- State:
- South Dakota
Shamrock Colony is a CDP located in Beadle County, South Dakota. Shamrock Colony has a 2025 population of 64 . Shamrock Colony is currently growing at a rate of 6.67% annually and its population has increased by 276.47% since the most recent census, which recorded a population of 17 in 2020.
The median age in Shamrock Colony is 35.2 years: 0 years for males, and 0 years for females. For every 100 females there are 400.0 males.