
Calcium
- County:
- Jefferson County
- County Seat:
- No
- Area (mi²):
- 5.607
- State:
- New York
Calcium is a CDP located in Jefferson County, New York. Calcium has a 2025 population of 3,655. Calcium is currently growing at a rate of 0.3% annually and its population has increased by 3.02% since the most recent census, which recorded a population of 3,548 in 2020.
The average household income in Calcium is $70,361 with a poverty rate of 6.15%. The median age in Calcium is 25.9 years: 27.5 years for males, and 23.5 years for females.