The Adazi Region is situated in the Northern part of the Pieriga Region - 25km from the centre of Riga, it borders with the Garkalne, Carnikava, Saulkrasti, Seja and Incukalns regions, as well as with the town of Vangazi. Within the framework of the administrative territory reform of 2006, the Adazi Civil Parish, performing no changes in its borders, became the Adazi Region. Its total area is 162.9 km2, occupying 5.3% of the Pieriga Region territory. More than 10 thousand people live there. The Adazi Region is composed of 12 villages. The largest of them are Adazi, Kadaga, Baltezers, Garkalne and Staprini The Administrative Centre of the region is situated in Adazi Village.
38.7% of territory of the region is covered by forests, where numerous lakes are scattered. The largest of them are Lielais and Mazais Baltezers, Dunezers, Lilastes Lake, Lieluikas and Mazuikas Lakes. Mazais Baltezers, with an area of 119 ha, is the deepest lake in the Riga vicinity (in some places it reaches even 10 m). Six islets of the Lielais Baltezers were deemed as natural preserves in 1924, but since 1977 as botanical reserves, where any economic activities are prohibited. Specially protected natural areas include the Lieluikas and Mazuikas Lakes, both natural reserves since 1999. There, one may find several types of rare plant species. Since 2004, the area of protected landscapes is included into the Natura2000 network of EU protected natural areas.
A large part of the territory of the Adazi Region is formed by the territory of the Adazi Firing Range. Since 1999, 6652 ha and 150 buildings in the Firing Range territory situated in the Adazi Region are owned by the Ministry of Defence, and are used for the purpose of state defence. One of the major military bases in the Baltic States is situated in the territory and consists of 4 subdivisions: the 3rd Regional Support Centre, Land Force 1st Infantry Battalion, Land Force 2nd Infantry Battalion and the School of Neutralization of Live Munition.
One of the longest and most beautiful rivers in Latvia, the Gauja (the lower span of the Gauja is at an average of 130 m, its depth - 1.5 m), flows through the Adazi Region. Closer to the Gulf of Riga, in the direction of Carnikava, is the Lithorine Sea Plain, the lower sites of which are paludified and situated with polder systems. The main traffic in the region runs along the motorway Riga - Ainazi, which is a significant section of the motorway VIA Baltica.