Millbrook is also the principal stop for the Marston Vale Millennium Country Park.

A public house called the Morteyne Arms opened opposite the station.

[6] The station, whose name was changed to "Millbrook" in 1910, was reduced to an unstaffed halt in 1968, having lost its formerly substantial goods facilities four years previously.

In 1999, the low station platforms – the last of their type remaining on the line – were rebuilt to the standard height appropriate to modern trains.

The typical off-peak service is one train per hour in each direction between Bletchley and Bedford which runs on weekdays and Saturdays only using Class 150 DMUs.