Suffolk County Council is the administrative authority for the county of Suffolk, England. It is run by 75 elected county councillors representing 63 divisions. It is a member of the East of England Local Government Association.

Elected county councils were created in 1889 under the Local Government Act 1888, taking over administrative functions that had been previously been performed by unelected magistrates at the court of quarter sessions. In most counties the quarter sessions were held at a single location, but in Suffolk the custom was long-established of holding the quarter sessions across several days, sitting in different towns.^[3] Prior to 1860 the court sat in the four towns of Beccles, Bury St Edmunds, Ipswich and Woodbridge. In 1860 the Beccles and Woodbridge divisions merged with the Ipswich one to form the eastern division, and the area administered from Bury St Edmunds became known as the western division.^[4]

Officially it remained one court of quarter sessions which adjourned after each day of hearings and travelled to a new venue, and the original draft bill in 1888 therefore envisaged that there would be a single Suffolk County Council. As the bill progressed through its parliamentary processes an amendment was proposed by Frederick Hervey, 3rd Marquess of Bristol, who lived at Ickworth House near Bury St Edmunds, that the eastern and western divisions of the county should instead become separate administrative counties. The amendment was agreed by 59 votes to 20 in the House of Lords.^[5] It was also agreed that the borough of Ipswich was large enough to provide its own county-level functions and so it was made a county borough. Suffolk therefore had three county-level authorities after 1889: West Suffolk County Council, East Suffolk County Council and Ipswich Corporation.^[6]

This system continued until 1974, when the Local Government Act 1972 abolished the separate county councils for East Suffolk and West Suffolk and downgraded Ipswich to providing district-level services only. In their place, Suffolk County Council was created with responsibility for county-level services across the whole county. Initially based at East Suffolk County Hall in Ipswich, the council relocated to Endeavour House in 2004.^[7]

In September 2010, the council announced that it would seek to outsource a number of its services, in an attempt to cut its budget by 30%.^[8] Controversy surrounding the then chief executive Andrea Hill, some concerning £122,000 spent on management consultants, featured in the local and national press in 2011;^[9] this led to her facing a disciplinary hearing, and subsequently resigning.^[10]

Suffolk County Council provides county-level services. District-level services are provided by the area's five district councils:^[11]

• Babergh District Council
• East Suffolk District Council
• Ipswich Borough Council
• Mid Suffolk District Council
• West Suffolk District Council

With the exception of Ipswich, the rest of the county is covered by civil parishes, which form a third tier of local government.^[12]

The council is based at Endeavour House at 8 Russell Road in Ipswich. It also maintains area offices in Bury St Edmunds and Lowestoft.^[19] Endeavour House was built in 2003. It was originally commissioned as private offices but was bought by the county council whilst still under construction; the council moved into the building in 2004.^[20] Since 2017 the council has shared the building with Babergh District Council and Mid Suffolk District Council.^[21]

Previously the council was based at County Hall on St Helen's Street in Ipswich, the oldest parts of which had been built in 1837 as a jail and courthouse, which had been one of the meeting places of the quarter sessions.^[22] The building had become the meeting place of East Suffolk County Council after 1889, and that council had built substantial extensions to the building, notably in 1906 with an office block, new council chamber and clock tower at the corner of St Helen's Street and Bond Street.^[23]

Both County Hall and the Shire Hall in Bury St Edmunds had been inherited by Suffolk County Council from the two former county councils when local government was reorganised in 1974; Shire Hall served as an area office until 2009 when the council moved its Bury St Edmunds office to West Suffolk House, a new building shared with St Edmundsbury Borough Council (West Suffolk Council after 2019).^[24][25]

Since the last boundary changes in 2005 the council has comprised 75 councillors representing 63 electoral divisions, with each division electing one or two councillors. Elections are held every four years.^[26] New division boundaries reducing the number of councillors to 70 have been drawn up to come into effect for the 2025 election.^[27]