Located to the northwest of the city centre, Ajapnyak has common borders with the districts of Arabkir from the east, Davtashen from the north, Kentron from the southeast, and Malatia-Sebastia from the south.

Ajapnyak has also common borders with the provinces of Armavir and Aragatsotn from the west, and Kotayk from the north.

It is unofficially divided into smaller neighborhoods such as Ajapnyak, Norashen, Nazarbekyan, Silikyan, Lukashin, Vahagni, Anastasavan and Cheremushki.

Many other minor plants producing food products, clothes, electronic devices and building materials also operate in the district.

The Yerevan Physics Institute scientific research centre founded in 1943, is located in Ajapnyak.

In 1993, Monte Melkonian Military Academy of the Defence Ministry of Armenia was opened in the district, followed by the Tumo Center for Creative Technologies in 2011.