On 1 January 1962, the Furulund area of Gran on the west side of the lake Randsfjorden (population: 180) was transferred to the neighboring Jevnaker Municipality.

On 1 January 1964, the part of Gran located at the south end of the lake Einavatnet (population: 12) was transferred to the neighboring Vestre Toten Municipality.

The official blazon is "Gules, two piles reversed from each emerges a cross bottony Or" (Norwegian: I rødt to gull spisser som ender i kløverbladkors).

The triangles and crosses were meant to represent the spires of the medieval Sister Churches which are located in the municipality.

A more likely explanation however, is that the Mariakirke was built for the local congregation, while the Nikolaikirke was the main church for Hadeland parish.

[13] This is also the location of Hadeland Folkemuseum with a collection of buildings from the area, farm implements, a grave mound from the Viking Age, and a replica of the 11th century Dynna Runestone (Dynnasteinen).

Health care spending represents about one-third of the total municipal budget, which is 7.5% higher than the average for Norway.

The Norwegian National Road 4 runs through the most populated parts of Gran, bringing lots of transportation traffic.

It is bordered to the north by the municipalities of Søndre Land and Vestre Toten (in Innlandet county), to the east by Hurdal and Nannestad, to the south by Lunner and Jevnaker, and to the west by Ringerike.

The municipal council (Kommunestyre) of Gran is made up of 27 representatives that are elected to four year terms.