Oak Forest is a populated place LOCATED WITHIN the City of Tarrant. In turn, the City of Tarrant is located within Jefferson County.
Oak Forest is located at latitude 33.602 and longitude -86.782.
Since Oak Forest is located within the City of Tarrant, all of the census and demographic data for residents of Oak Forest are included as part of the information reported for City of Tarrant in the "Profile" tab above.