[7] Gamilaraay (Gamilaroi, Kamilaroi, Comilroy) is a language from South-West Queensland and North-West New South Wales.

The Gamilaraay language region includes the landscape within the local government boundaries of the Balonne Shire Council, including the towns of Dirranbandi, Thallon, Talwood and Bungunya as well as the border towns of Mungindi and Boomi extending to Moree, Tamworth and Coonabarabran in NSW.

[8] Explorer Thomas Mitchell was the first European in the Thallon district and his initials can still be found on a bloodwood tree near the Moonie River.

It was in Garah Street (28°38′19″S 148°51′54″E / 28.638697°S 148.865°E / -28.638697; 148.865 (St Joseph's Catholic Church)) on a 0.5 acres (0.20 ha) site donated by F. McLoughlin.

[5] Thallon has a post office, hotel, community hall, showground, park and sportsground.

[25][26] The Thallon-Daymar branch of the Queensland Country Women's Association has its rooms at 47 William Street.

In 2015, the town of Thallon decided to build a large statue of a northern hairy-nosed wombat as one of Australia's Big Things to attract tourists and to highlight the critically endangered status of the species which had once inhabited the Thallon area but is now extinct in that area.

[28][29] There is a small population of the wombats at the Richard Underwood Nature Refuge, located between St George and Surat, established in 2009.