Nillumbik Shire is located in Melbourne's north-eastern suburbs. The Shire encompasses a total land area of about 432 square kilometres. Nillumbik Shire features both urban and rural areas with undulating hills. The bulk of population is located in the southern and south-western areas, generally comprising Diamond Creek, Eltham, Eltham North, Greensborough, Hurstbridge and Wattle Glen. The major townships are Eltham, Diamond Creek and Hurstbridge.

NOTE: The land use shown in the map is derived from ABS Mesh Block categories. Mesh Blocks broadly identify land use and are not designed to provide definitive land use. It is purely an indicator of the main planned land use for a Mesh Blocks. For more information please refer to ABS Mesh Block categories.