Originally Birkerød consisted of eight individual villages (Birkerød, Kajerød, Bistrup, Ravnsnæs, Isterød, Høsterkøb, Sandbjerg and Ubberød) and did so until the 1940s when the construction of villa neighborhoods slowly erased the village borders and formed one town.
Despite being individual villages, they shared the same church, Birkerød Kirke (Birkerød Church), since the 12th century. This made Birkerød the "capital" of the parish and it was also here the railroad station, Birkerød station, was constructed in 1868.
In 1963 Bistrup Parish was established as an independent parish and the new Bistrup Kirke (Bistrup Church) was inaugurated i 1967.
To the south is one of the largest lakes in Denmark, Furesøen
