
LaGrange
- County:
- Dutchess County
- County Seat:
- No
- Area (mi²):
- 39.877
- State:
- New York
LaGrange is located in Dutchess County, New York. LaGrange has a 2025 population of 16,369. LaGrange is currently declining at a rate of -0.11% annually but its population has increased by 2.45% since the most recent census, which recorded a population of 15,978 in 2020.
The average household income in LaGrange is $147,702 with a poverty rate of 5.83%. The median age in LaGrange is 41.2 years: 41.6 years for males, and 40.9 years for females.