Oakgrove is bounded by the grid roads Brickhill St (V11) to the east, Chaffron Way (H7) to the south, and by the Ouzel to the west and north.
Oakgrove is a small district because it is nominally in the same grid square as the Woolstones (to its west) but is separated from them by the wide flood plain of the Ouzel, which is a linear park in normal times.
The city centre, Central Milton Keynes, is located 2 miles (3.2 km) to the north-west of the district, whilst the Kingston District Centre is located 1.5 miles (2.4 km) to the south-east.
The district is a relatively small one since it takes up just the eastern part of its grid square, which it shares with Woolstone (separated by the Ouzel valley) and Springfield (by the Grand Union Canal).
The name of the district is based on a 1685 estate map, which use the name Oak Grove for a part of this area.