
Allenhurst
- County:
- Monmouth County
- County Seat:
- No
- Area (mi²):
- 0.25
- State:
- New Jersey
Allenhurst is a borough located in Monmouth County, New Jersey. Allenhurst has a 2025 population of 464. Allenhurst is currently declining at a rate of -0.22% annually and its population has decreased by -1.07% since the most recent census, which recorded a population of 469 in 2020.
The average household income in Allenhurst is $178,097 with a poverty rate of 5.68%. The median age in Allenhurst is 50.3 years: 37.6 years for males, and 58.2 years for females.