
Amsterdam
- County:
- Gallatin County
- County Seat:
- No
- Area (mi²):
- 2.707
- State:
- Montana
Amsterdam is a CDP located in Gallatin County, Montana. Amsterdam has a 2025 population of 155. Amsterdam is currently declining at a rate of -1.27% annually and its population has decreased by -8.28% since the most recent census, which recorded a population of 169 in 2020.
The average household income in Amsterdam is $115,380 with a poverty rate of 17.02%. The median age in Amsterdam is 42.8 years: 40.7 years for males, and 52.8 years for females.