The Local Government Act 1958 (6 & 7 Eliz.2 c.55) was an act of the Parliament of the United Kingdom effecting local government in England and Wales outside London. Among its provisions it included the establishment of Local Government Commissions to review the areas and functions of local authorities, and introduced new procedures for carrying these into action.

• Part I of the Act dealt with the finance of councils, in particular it introduced a general grant, payable to all councils, and a rate-deficiency grant for those councils whose area had lower than average per capita rates income. These measures replaced a number of earlier separate grants for different services, which reflected the increasing number of services being provided by local authorities. These grants were later replaced by the rate support grant by the General Rate Act 1967. Part I also dealt with the rating of the nationalised gas and electricity undertakings.

• Part II of the Act dealt with reviews of local government areas. It established a Local Government Commission for England who were charged with reviewing the organisation of local government in five special review areas, and also had the power to make reviews elsewhere in England outside a defined metropolitan area. A similar Local Government Commission for Wales (including Monmouthshire) was also formed, although no special review areas were designated in Wales. Each county council in England and Wales was required to make a review of the local government in its area. However, they were not empowered to make any proposals in any place included in a special review area, or in the metropolitan area. As the entire County of London was included in the metropolitan area, the London County Council was excluded from making reviews. If the county council, in the opinion of the Minister of Health, had failed to carry out a proper review, he could ask the relevant local government commission to carry out one. Local authorities were prohibited from promoting any private bill to parliament "forming any new area of local government, or for altering, or altering the status of, any area of local government" for a period of fifteen years from the commencement of the Act. Finally, the population required for the formation of a new county borough was increased from 75,000 to 100,000.

• Part III allowed county councils to delegate certain powers in relation to health, welfare and education to borough, rural or urban district councils.

• Part IV dealt with general and supplementary provisions of the Act. One section in this part of the Act - Section 59 - allowed the council of a county or county borough to change the name of the borough or county by agreement with the Minister for Health. This section was quickly used by Southampton County Council, which changed the administrative county's name (and therefore the council's name) to Hampshire from April 1 1959. The power to change the name of urban and rural districts and of civil parishes remained with the county council under the Local Government Act 1894

The five special review areas consisted of major conurbations outside London: Tyneside, West Yorkshire, South East Lancashire, Merseyside and the West Midlands. A full review was only carried out in the West Midlands when much of the review area was incorporated into five large county boroughs. Later legislation was to reform local government areas and services in these areas. Several police forces in the review areas were combined under the Police Act 1964, the Transport Act 1968 created transport authorities for four of the areas and all of the review areas were eventually to form the nucleus of metropolitan counties in 1974 under the Local Government Act 1972.

• The county boroughs of Gateshead, Newcastle upon Tyne, South Shields and Tynemouth
• Part of County Durham, namely: the municipal borough of Jarrow, and the urban districts of Blaydon, Felling, Hebburn, Ryton and Whickham
• Part of Northumberland, namely: the municipal boroughs of Wallsend and Whitley Bay, and the urban districts of Gosforth, Longbenton and Newburn.

These areas (except part of Whitley Bay) were all eventually included in the larger metropolitan county of Tyne and Wear (which also included the Sunderland area on Wearside) in 1974.

• The county boroughs of Bradford, Dewsbury, Halifax, Huddersfield, Leeds and Wakefield
• Part of the West Riding of Yorkshire, namely: the municipal boroughs of Batley, Brighouse, Castleford, Keighley, Morley, Ossett, Pontefract, Pudsey and Spenborough, and the urban districts of Aireborough, Baildon, Bingley, Colne Valley, Denby Dale, Denholme, Elland, Featherstone, Heckmondwike, Holmfirth, Horbury, Horsforth, Kirkburton, Knottingley, Meltham, Mirfield, Normanton, Queensbury and Shelf, Ripponden, Rothwell, Shipley, Sowerby Bridge and Stanley.

In 1974 this area formed the core of the metropolitan county of West Yorkshire, which also included some outlying rural areas and towns.

• The county boroughs of Bolton, Bury, Manchester, Oldham, Rochdale, Salford and Stockport
• Part of Cheshire, namely: the municipal boroughs of Altrincham, Dukinfield, Hyde, Sale and Stalybridge, the urban districts of Alderley Edge, Bowdon, Bredbury and Romiley, Cheadle and Gatley, Hale, Hazel Grove and Bramhall, Marple and Wilmslow, the rural district of Disley and the civil parishes of Carrington, Partington and Ringway in the Bucklow Rural District
• Part of Lancashire, namely: the municipal boroughs of Ashton-under-Lyne, Eccles, Farnworth, Heywood, Middleton, Mossley, Prestwich, Radcliffe, Stretford and Swinton and Pendlebury, and the urban districts of Audenshaw, Chadderton, Crompton, Denton, Droylsden, Failsworth, Horwich, Irlam, Kearsley, Lees, Littleborough, Little Lever, Milnrow, Royton, Tottington, Urmston, Wardle, Westhoughton, Whitefield, Whitworth and Worsley

Despite the review area's name, much of it was in Cheshire. This was reflected in the area being referred to in later reviews as "south East Lancashire and North East Cheshire" or SELNEC. Although no local government reforms were made under the 1958 Act, a SELNEC passenger transport authority was formed in 1969. A metropolitan county of Greater Manchester was formed in 1974 for a similar area to the SRA, although it excluded Alderley Edge, Disley and Wilmslow.

• The county boroughs of Birkenhead, Bootle, Liverpool and Wallasey
• Part of Cheshire, namely: the municipal boroughs of Bebington and Ellesmere Port, and the urban districts of Hoylake, Neston and Wirral
• Part of Lancashire, namely: the municipal borough of Crosby, the urban districts of Huyton-with-Roby, Kirkby and Litherland, and the civil parishes of Aintree and Simonswood in the West Lancashire Rural District

In 1974 a metropolitan county of Merseyside was formed which had a different area than the 1958 Act SRA. While excluding Ellesmere Port and Neston, which remained in Cheshire, the 1974 boundaries included much more of Lancashire, including Formby, St Helens and Southport.

• The county boroughs of Birmingham, Dudley, Smethwick, Walsall, West Bromwich and Wolverhampton
• Part of Staffordshire, namely: the municipal boroughs of Bilston, Rowley Regis, Tipton and Wednesbury, and the urban districts of Aldridge, Amblecote, Brierley Hill, Brownhills, Coseley, Darlaston, Sedgley, Tettenhall, Wednesfield and Willenhall
• Part of Warwickshire, namely: the municipal boroughs of Solihull and Sutton Coldfield, and thec civil parishes of Castle Bromwich and Kingshurst in Meriden Rural District
• Part of Worcestershire, namely: the municipal boroughs of Halesowen, Oldbury and Stourbridge

In 1964 Solihull, with altered boundaries, became a county borough. In 1966 an order altering local government in much of the "Black Country" part of the SRA came into effect creating five large county boroughs of Dudley, Walsall, Warley, West Bromwich and Wolverhampton, which were also to share a police force, the West Midlands Constabulary. A West Midlands passenger transport authority, including Birmingham, was formed in 1969. In 1974 a larger metropolitan county was formed, including Coventry and the intervening countryside.

The 1958 Act did not extend to the greater London area where reform of local government was under consideration by the Royal Commission under Sir Edwin Herbert established in the previous year. The area excluded was defined in schedule 5 as:

• County of London
• Middlesex
• From Surrey
  • County Borough of Croydon
  • Municipal Borough of Barnes, Municipal Borough of Beddington and Wallington, Municipal Borough of Epsom and Ewell, Municipal Borough of Kingston upon Thames, Municipal Borough of Malden and Coombe, Municipal Borough of Mitcham, Municipal Borough of Richmond, Municipal Borough of Surbiton, Municipal Borough of Sutton and Cheam and the Municipal Borough of Wimbledon
  • Banstead Urban District, Carshalton Urban District, Caterham and Warlingham Urban District, Coulsdon and Purley Urban District, Esher Urban District, Merton and Morden Urban District and Walton and Weybridge Urban District
• From Kent
  • Municipal Borough of Beckenham, Municipal Borough of Bexley, Municipal Borough of Bromley, Municipal Borough of Dartford and Municipal Borough of Erith
  • Chislehurst and Sidcup Urban District, Crayford Urban District, Orpington Urban District and Penge Urban District
• From Hertfordshire
  • Municipal Borough of Watford
  • Barnet Urban District, Bushey Urban District, Cheshunt Urban District, Chorleywood Urban District, East Barnet Urban District and Rickmansworth Urban District
  • Elstree Rural District and the parish of Northaw in the Hatfield Rural District and the parishes of Aldenham and Watford Rural in the Watford Rural District
• From Essex
  • County Borough of East Ham, County Borough of West Ham
  • Municipal Borough of Barking, Municipal Borough of Chingford, Municipal Borough of Dagenham, Municipal Borough of Ilford, Municipal Borough of Leyton, Municipal Borough of Romford, Municipal Borough of Walthamstow and Municipal Borough of Wanstead and Woodford
  • Chigwell Urban District, Hornchurch Urban District and Waltham Holy Cross Urban District.

The commission delivered its report in 1960, and a much modified version of its proposals (excluding outlying districts) was enacted as the London Government Act 1963.

A weakness in the county reviews carried out under the earlier Local Government Act 1929 had been that, unlike small urban districts, municipal boroughs of a similar size could not be amalgamated into a surrounding rural district. This was addressed in the 1958 Act, which gave the reviewing county council or local government commission the power to include a non-county borough in a rural district. However, some of the civic dignities of the borough corporation would be retained. The boroughs thus effected would be known as "boroughs included in rural districts", or as rural boroughs.

Rural boroughs were no longer to be governed by the Municipal Corporations Act 1882, and the corporation was to consist entirely of elected councillors, from whose number a mayor, and deputy mayor were to be chosen annnually. The office of alderman was not to exist in rural boroughs. The council of a rural borough was required to continue to appoint a town clerk, and was permitted to employ such officers and servants as needed to discharge the functions of the borough. All provisions of the borough's charter not inconsistent with its new status were to remain in effect. Rural boroughs were prevented from applying for a new or amended charter, however. If the borough corporation so chose it could surrender its charter, and the borough would be converted into a civil parish governed by a parish council.

Rural boroughs were abolished in 1974 under the Local Government Act 1972, and converted to civil parishes.

Apart from the West Midlands review mentioned above, there were few large-scale changes brought about by the 1958 Act:

• Bedfordshire, 1964 (Luton became county borough)
• Cornwall, 1968 (extensive changes to county districts and creation of 1 rural borough)
• Devon in 1967 (creation of Torbay county borough, other changes including creation of 1 rural borough)
• County Durham, 1967 (creation of Hartlepool county borough, enlargement of Sunderland)
• Herefordshire, 1968 (two urban districts absorbed by rural districts)
• Huntingdonshire, 1961 (union of boroughs of Huntingdon and Godmanchester
• Union of aministartive counties of Huntingdon and Peterborough and Cambridgeshire and Isle of Ely in 1965
• Shropshire in 1967 and 1968 (extensive changes in county districts and creation of five rural boroughs)
• Teesside county borough created 1968

No changes were made in Wales.

Major changes in Greater London that occurred in 1965 were carried out the London Government Act 1963.

The Local Government (Termination of Reviews) Act 1967 brought an end to the review process established by the 1958 Act.

The 1967 Act disssolved the two local government commissions, and ended the duty of county councils to review council areas. No report, proposals or notification made by the commissions or councils was to be carried into effect, if submitted after the beginning of 1963 by the Welsh commission, February 10 1966 in the case of the English commission and August 31 1966 by the county councils.

In the meantime, a Royal Commission on Local Government, (usually known as the Redcliffe-Maud Commission) had been appointed on May 31, 1966 to "consider the structure of Local Government in England, outside Greater London... and to make recommendations for authorities and boundaries, and for functions and their division....^[1] The work of the Royal Commission led to a fundamental reorganisation of local councils in 1974 by the Local Government Act 1972.

• Local Government Act 1958 (6 & 7 Eliz 2., c.55)
• Youngs F. A., Guide to the Local Administrative Units of England, 2 volumes, London, 1979 and 1991