Hunterdon County Library – Headquarters Branch – Bldg. 3 – Main Meeting Room Loading Map.... Hunterdon County Library – Headquarters Branch – Bldg. 3 – Main Meeting Room 314 State Route 12 Flemington, NJ 08822 40.504081 -74.900844 Address 314 State Route 12 Flemington NJ 08822 United States Upcoming Events No events in this location