Holly Grove is a populated place LOCATED WITHIN the City of Grannis. In turn, the City of Grannis is located within Polk County.
Holly Grove is located at latitude 34.228 and longitude -94.27.
Since Holly Grove is located within the City of Grannis, all of the census and demographic data for residents of Holly Grove are included as part of the information reported for City of Grannis in the "Profile" tab above.