
Seabrook Beach
- County:
- Rockingham County
- County Seat:
- No
- Area (mi²):
- 1.047
- State:
- New Hampshire
Seabrook Beach is a CDP located in Rockingham County, New Hampshire. Seabrook Beach has a 2025 population of 832. Seabrook Beach is currently declining at a rate of -1.3% annually and its population has decreased by -14.75% since the most recent census, which recorded a population of 976 in 2020.
The average household income in Seabrook Beach is $168,258 with a poverty rate of 8.47%. The median age in Seabrook Beach is 61.9 years: 61.7 years for males, and 62.3 years for females.