Oak Park is a populated place LOCATED WITHIN the City of Tarrant. In turn, the City of Tarrant is located within Jefferson County.
Oak Park is located at latitude 33.576 and longitude -86.769.
Since Oak Park is located within the City of Tarrant, all of the census and demographic data for residents of Oak Park are included as part of the information reported for City of Tarrant in the "Profile" tab above.