
Eighty Four
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 6.601
- State:
- Pennsylvania
Eighty Four is a CDP located in Washington County, Pennsylvania. Eighty Four has a 2025 population of 652. Eighty Four is currently declining at a rate of 0% annually and its population has increased by 88.99% since the most recent census, which recorded a population of 345 in 2020.
The average household income in Eighty Four is $128,270 with a poverty rate of 1.13%. The median age in Eighty Four is 44.7 years: 35.6 years for males, and 47 years for females.