
Alexandria
- County:
- Jefferson County
- County Seat:
- No
- Area (mi²):
- 72.576
- State:
- New York
Alexandria is located in Jefferson County, New York. Alexandria has a 2025 population of 3,660. Alexandria is currently declining at a rate of -0.6% annually and its population has decreased by -1.88% since the most recent census, which recorded a population of 3,730 in 2020.
The average household income in Alexandria is $126,746 with a poverty rate of 7.34%. The median age in Alexandria is 49.4 years: 47.5 years for males, and 51.9 years for females.