[1][2] Garston is contiguous with Watford and now, despite retaining a local identity, is effectively a suburb.

It is within the Stanborough, Woodside and Meriden wards of the borough of Watford, although a small number of its streets are in Hertsmere.

The A41 is the perceived border of Garston and North Watford; it crosses St Albans Road (A412) at the Dome Roundabout.

Garston railway station on the Abbey line is served by West Midlands Trains services.

[3] Arriva London operated a bus garage in Garston.