Holbrook is an unincorporated community in Greene County, Pennsylvania, United States.
[1] The community is located along Pennsylvania Route 18, 7.7 miles (12.4 km) west-southwest of Waynesburg.
Holbrook has a post office, with ZIP code 15341, which opened on June 10, 1869.
This Greene County, Pennsylvania state location article is a stub.
You can help Wikipedia by expanding it.