Old Bletchley sits on the western side of Milton Keynes, straddling the boundary between the modern town centre and the older residential areas that predate the city’s 1967 designation. The suburb takes its name from the original village of Bletchley, which existed long before the new town was built. As a suburban neighbourhood, Old Bletchley retains something of its pre-development character, with tree-lined streets and properties that reflect different periods of residential construction.
The area lies within Buckinghamshire and is well connected to the rest of Milton Keynes by road and bus services. Many residents commute into the town centre or travel further afield via the nearby rail links that serve the wider area. Old Bletchley functions as a quiet residential quarter, offering a more established feel than the planned estates that surround it, and it remains home to families and workers drawn to its accessible location and local amenities.