On 31 March 1903 Divisional Boards became Shire Councils under "The Local Authorities Act of 1902", and the Thuringowa Divisional Board became the Thuringowa Shire Council.
Under the Local Authorities Act 1902, the primary function of Shire Councils was to provide such public services and amenities as roads, bridges, water, sanitation and drainage, public health services, parks and reserves, cemeteries, libraries and recreational facilities, street lighting, etc. The Council was also constituted the Thuringowa Water Authority.
Council also had powers in relation to the construction of buildings, fire prevention, public nuisances, places of amusement, public carriers, slaughter houses, markets, animals and traffic. Increased powers were given to Council by subsequent local government legislation, for example, in the areas of public health, building regulation, town planning and the environment, public utilities and business undertakings.
The Council was also responsible for administering the Local Fund, and until 1944, for valuing properties within the Shire for the purpose of determining and collecting rates, which together with endowments and loans formed its revenue base. The general powers of Council were exercised through the passing of by-laws approved by Governor-in-Council.
The Shire was governed by a rate-payer elected council comprising a chairman and councillors. Special or general purpose committees were appointed reporting to Council. Council appointed its own officers to administer its business, headed by a Shire Clerk/Chief Executive Officer.
Home Secretary 31 Mar 1903 - 5 Dec 1935
Secretary for Health and Home Affairs 5 Dec 1935 - 23 Dec 1941
Secretary for Public Works 23 Dec 1941 - 15 May 1947
Secretary for Public Works, Housing and Local Government 15 May 1947 - 1 May 1952
Treasurer 1 May 1952 - 12 Aug 1957
Minister for Public Works and Local Government 12 Aug 1957 - 26 Sep 1963
Minister for Local Government and Conservation 26 Sep 1963 - 29 May 1969
Minister for Local Government and Marine Activities 29 May 1969 - 4 Sep 1969
Minister for Local Government and Electricity 4 Sep 1969 - 23 Dec 1974
Minister for Local Government and Main Roads 23 Dec 1974 - 29 Jul 1980
Minister for Local Government, Main Roads and Police 29 Jul 1980 - 6 Dec 1982
Minister for Local Government, Main Roads and Racing 6 Dec 1982 - 1 Jan 1986
On 1 Jan 1986 following a request by the Council, the Shire was proclaimed a City.