At the time, it was situated on a nigh entirely uninhabited area on the northern outskirts of Helsinki that had been annexed to the city just four years prior.

[3] The station lies quite some distance away to the northwest of the suburbs of Käpylä, the bulk of which were built in the interwar period.

The station building fell out of use as Käpylä was made an unmanned halt in 1963; it was dismantled at some point towards the end of the 1970s.

[4] The station has a HSL ticket vending machine, as well as elevators and 55 centimetres (22 in) high platforms for accessibility.

The Käpylä station, as well as its surrounding bus stops, belong to HSL fare zone A.