A recommendation was made to the Minister for Local Government by the Local Government Advisory Board in August 2006 to amalgamate the Shire of Greenough with the City of Geraldton. The Greenough electors successfully petitioned for a referendum to determine whether amalgamation should proceed. This was held on 2 December 2006, and with a participation rate of 28.74%, a majority of 80% voted against the proposal. However, under the Local Government Act 1995 as the vote did not attract 50% of registered voters, it did not meet the requirements for a valid poll. The Liberal government, elected in mid-2008, announced its intentions to amalgamate local governments around the state in line with reforms undertaken elsewhere in Australia. Ultimately, the plan did not succeed, but a number of local governments commenced negotiations for voluntary mergers. One such group included the City, the Shire of Chapman Valley and the Shire of Mullewa. In February 2010, Chapman Valley decided not to proceed, citing community opposition. In December 2010, the Local Government Advisory Board approved the merger. Polls were held in both municipalities, with 72.61% of voters in Geraldton-Greenough and 83.23% of voters in Mullewa voting against the merger. However, both polls failed to reach the minimum 50% required to be a valid poll, and the City of Greater Geraldton came into being on 1 July 2011. Until the October 2011 elections, the council was administered by five commissioners, led by Ron Yuryevich, the mayor of City of Kalgoorlie-Boulder, and including Ian Carpenter, the mayor of the former City and Nino Messina, the mayor of the former Shire.
Wards
The City is divided into seven wards, each with two councillors, plus a directly elected mayor to serve the entire district.
The population of Greater Geraldton grew from 34,019 in 2001 to 38,634 at the 2016 census, representing an increase of 14%. Unemployment in Greater Geraldton at the census was estimated at 8.8%, compared to 7.8% in Western Australia and 6.9% nationally. The historical populations of the area which formed Geraldton-Greenough were:
Year
Population
Geraldton
Greenough
Mullewa
1921
6,365
4,174
1,375
816
1933
8,162
4,984
1,556
1,622
1947
8,864
5,972
1,567
1,325
1954
11,337
8,309
1,371
1,657
1961
13,842
10,894
1,321
1,627
1966
15,544
12,125
1,594
1,825
1971
18,887
15,118
1,920
1,849
1976
22,501
17,663
2,979
1,859
1981
25,356
19,096
4,612
1,648
1986
27,176
19,923
5,798
1,455
1991
29,537
20,521
7,626
1,390
1996
31,237
19,724
10,337
1,176
2001
32,196
19,179
11,927
1,090
2006
33,372
18,916
13,545
911
Heritage-listed places
As of 2020, 733 places are heritage-listed in the City of Greater Geraldton, of which 84 are on the State Register of Heritage Places.