The Inbetweeners was primarily filmed in various locations in and around London, England, including North West London suburbs such as Ruislip, Watford, Uxbridge, and Pinner. Key specific filming sites include:

• Ruislip High School (used as Rudge Park Comprehensive School from the show).
• Residential houses in Abbots Langley, Hertfordshire, including 4 Whitley Close (Will's house), 6 Cardiff Way (Jay's house), and 20 Edinburgh Drive (Simon's house).
• Inglis Barracks in Mill Hill, London (hostel scenes).
• Thorpe Park amusement park in Surrey.
• Other filming for the series took place in garden locations in Abbey Drive, Abbots Langley.
• For the two feature films, filming locations included Malia, Crete and Western Australia, with some scenes shot in Mallorca, Spain doubling for Malia.

The show captures suburban North West London and surrounding areas to depict the setting of the school and homes of the main characters, reflecting the typical commuter towns of Hertfordshire and Surrey near London.