The Weraerai and Kamilaroi peoples, whose descendants are still in the town, were the early inhabitants of the area.
Major Thomas Mitchell went to the district at the request of the acting governor after the recapture of escaped convict George Clarke who told of a great river called the Kindur in 1832.
Clarke had been living in the area to the south with the Kamilaroi from 1826-1831.
Squatters soon followed in Mitchell's wake establishing pastoral runs, among which was 'Moree' (1844), from a Kamilaroi term believed to mean either 'long waterhole' or 'rising sun'.

In 1851 James and Mary Brand arrived and built a general store on the banks of the river in 1852.
A post office was added the following year.
The family sold up and moved to the Hunter Region in 1857 but James died in 1858 leaving Mary with six children so she returned opened another business and in 1861 she opened the town's first inn.

Moree was gazetted as a town in 1862 with land sales proceeding that year.
A court of petty sessions was established in 1863, and there was a severe flood in 1864.
The first constable arrived and a police station was set up in 1865.
The first church (Wesleyan) was built in 1867 when the town had a population of 43.

As closer settlement proceeded agriculture emerged as a thriving industry on the fertile flood plains.
Banking began in 1876 and the first local newspaper was set up in 1881, at which time the population was 295.

The town became a municipality in 1890.
During 1894 construction of the heritage listed Federation-style lands office commenced and ended that years with the completion of the ground floor.
The second storey was added in 1903.
In 1895 the Great Artesian Basin which sits under Moree was tapped and yields over thirteen megalitres of water every day.
The bore was sunk to 3,000 ft (910 m) deep in order to provide water for agricultural pursuits but was proved unsuitable for this purpose.
The railway line and service from Sydney arrived in 1897.

Wheat cultivation increased after World War II with a flour mill built at Moree in 1951 and the first commercial pecan nut farm was established on the Gwydir Highway east of Moree in 1966.
The Trawalla Pecan Nut Farm is the largest pecan nut farm in the southern hemisphere, growing about 75,000 trees.
In 1994 the Gwydir Olive Grove Company was established when two Moree families started producing olive oil from olives grown in the area.

Moree was one of the destinations of the famous 1965 Freedom Bus ride, an historic trip through northern NSW led by Charles Perkins to bring media attention to discrimination against indigenous Australians.
 It brought racial segregation in rural Australia to the attention of urban Australians, in particular at the Moree Baths and Swimming Pool as well as pubs and theatres, where Aborigines were refused entry.
At the Moree swimming pool, after a confrontation with the council and pool management, it was agreed that indigenous children could swim in the pool outside school hours.

In 2007 the Moree Plains Council announced plans for a $14m upgrade to the hot thermal baths.

Floods have affected parts of Moree in 1955, 1971, 1976, 2011 and 2012 although much of the populated areas were and remain flood free.
The Weraerai and Kamilaroi peoples, whose descendants are still in the town, were the early inhabitants of the area. Major Thomas Mitchell went to the district at the request of the acting governor after the recapture of escaped convict George Clarke who told of a great river called the Kindur in 1832. Clarke had been living in the area to the south with the Kamilaroi from 1826-1831. Squatters soon followed in Mitchell's wake establishing pastoral runs, among which was 'Moree' (1844), from a Kamilaroi term believed to mean either 'long waterhole' or 'rising sun'.
In 1851 James and Mary Brand arrived and built a general store on the banks of the river in 1852. A post office was added the following year. The family sold up and moved to the Hunter Region in 1857 but James died in 1858 leaving Mary with six children so she returned opened another business and in 1861 she opened the town's first inn.
Moree was gazetted as a town in 1862 with land sales proceeding that year. A court of petty sessions was established in 1863, and there was a severe flood in 1864. The first constable arrived and a police station was set up in 1865. The first church (Wesleyan) was built in 1867 when the town had a population of 43.
As closer settlement proceeded agriculture emerged as a thriving industry on the fertile flood plains. Banking began in 1876 and the first local newspaper was set up in 1881, at which time the population was 295.
The town became a municipality in 1890. During 1894 construction of the heritage listed Federation-style lands office commenced and ended that years with the completion of the ground floor. The second storey was added in 1903. In 1895 the Great Artesian Basin which sits under Moree was tapped and yields over thirteen megalitres of water every day. The bore was sunk to 3,000 ft (910 m) deep in order to provide water for agricultural pursuits but was proved unsuitable for this purpose. The railway line and service from Sydney arrived in 1897.
Wheat cultivation increased after World War II with a flour mill built at Moree in 1951 and the first commercial pecan nut farm was established on the Gwydir Highway east of Moree in 1966. The Trawalla Pecan Nut Farm is the largest pecan nut farm in the southern hemisphere, growing about 75,000 trees. In 1994 the Gwydir Olive Grove Company was established when two Moree families started producing olive oil from olives grown in the area.
Moree was one of the destinations of the famous 1965 Freedom Bus ride, an historic trip through northern NSW led by Charles Perkins to bring media attention to discrimination against indigenous Australians.  It brought racial segregation in rural Australia to the attention of urban Australians, in particular at the Moree Baths and Swimming Pool as well as pubs and theatres, where Aborigines were refused entry. At the Moree swimming pool, after a confrontation with the council and pool management, it was agreed that indigenous children could swim in the pool outside school hours.
In 2007 the Moree Plains Council announced plans for a $14m upgrade to the hot thermal baths.
Floods have affected parts of Moree in 1955, 1971, 1976, 2011 and 2012 although much of the populated areas were and remain flood free.
Moree, New South Wales