Georgiana County was one of the original Nineteen Counties in New South Wales and is now one of the 141 cadastral divisions of New South Wales. It lies in the area about halfway between Bathurst and Goulburn. The Lachlan River is the western boundary, with the Crookwell River the southern boundary. It includes Bigga, and the area surrounding the Abercrombie River. It was part of the Electoral district of King and Georgiana from 1856 to 1859.

Georgiana County was named in honour of Georgiana Cavendish, Duchess of Devonshire (1757–1806).

Parishes within this county A full list of parishes found within this county; their current LGA and mapping coordinates to the approximate centre of each location is as follows:

Parish LGA Coordinates Abercrombie Bathurst Regional Council Ballyroe Oberon Shire Beemarang Oberon Shire Belmore Upper Lachlan Shire Bigga Upper Lachlan Shire Binda Upper Lachlan Shire Bingham Upper Lachlan Shire Blackman Upper Lachlan Shire Bolong Upper Lachlan Shire Bombah Bathurst Regional Council Bubalahla Upper Lachlan Shire Bucumba Oberon Shire Bummaroo Oberon Shire Burraga Oberon Shire Burridgee Upper Lachlan Shire Carrawa Bathurst Regional Council Copperhannia Bathurst Regional Council Cuddyong Upper Lachlan Shire Finley Oberon Shire Garrynian Oberon Shire Gillindich Upper Lachlan Shire Gilmandyke Oberon Shire Glengarry Upper Lachlan Shire Grabine Upper Lachlan Shire Groveland Bathurst Regional Council Gurnang Oberon Shire Hillas Upper Lachlan Shire Isabella Oberon Shire Jeremy Oberon Shire Jerrong Oberon Shire Julong Upper Lachlan Shire Kangaloolah Upper Lachlan Shire Kempfield Bathurst Regional Council Keverstone Upper Lachlan Shire Kiamma Upper Lachlan Shire Laggan Upper Lachlan Shire Leighwood Upper Lachlan Shire Markdale Upper Lachlan Shire Meglo Upper Lachlan Shire Mount Lawson Oberon Shire Mulgowrie Upper Lachlan Shire Mulgunnia Bathurst Regional Council Retreat Oberon Shire Rockley Oberon Shire Sherwood Upper Lachlan Shire Stoke Bathurst Regional Council Thalaba Upper Lachlan Shire Thompson Upper Lachlan Shire Tuena Upper Lachlan Shire Tyrl Tyrl Upper Lachlan Shire Walbrook Oberon Shire Wangalo Upper Lachlan Shire Werong Oberon Shire Wiarborough Upper Lachlan Shire Wowagin Upper Lachlan Shire Wyndham Oberon Shire Yalbraith Upper Lachlan Shire Yarraman Upper Lachlan Shire Yewrangara Upper Lachlan Shire

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