
Southwick
- County:
- Hampden County
- County Seat:
- No
- Area (mi²):
- 30.817
- State:
- Massachusetts
Southwick is located in Hampden County, Massachusetts. Southwick has a 2025 population of 9,215. Southwick is currently growing at a rate of 0.11% annually but its population has decreased by -0.05% since the most recent census, which recorded a population of 9,220 in 2020.
The average household income in Southwick is $122,889 with a poverty rate of 6.14%. The median age in Southwick is 48.2 years: 44.6 years for males, and 51 years for females.