Old Monroe School House

Old Monroe School House
LocationNJ 94, Hardyston Township, New Jersey
Coordinates41°6′57″N 74°37′58″W / 41.11583°N 74.63278°W / 41.11583; -74.63278
Built1819
NRHP reference No.77000911
NJRHP No.2601
Significant dates
Added to NRHPAugust 12, 1977
Designated NJRHPOctober 19, 1976

The Old Monroe School House is located along NJ Route 94 in the Monroe section of Hardyston Township in Sussex County, New Jersey, United States. The schoolhouse was built in 1819 and was added to the National Register of Historic Places on August 12, 1977, for its significance in education. According to the nomination form, the building is the only stone one-room school in the county and the oldest extant schoolhouse in the county.

The building is owned by the Hardyston Heritage Society and is open to the public as a period education museum. It is usually open to the public on the first Sunday of the months of June through September.