Just before Christmas I had a go at listing all the other elections that were due to take place in the UK on the same day as the general election.

The exact number of contests on 7 May has now been confirmed.

Local elections are taking place only in England. Seats are up for grabs on a total of 279 councils, comprising:

• 49 unitary authorities
• 36 Metropolitan councils
• 194 non-metropolitan districts

Votes cast in these elections will not be counted until the following day: Friday 8 May. No results are expected until mid-morning at the earliest.

The last time these seats were up for election was in 2011. The mix of metropolitan and district contests ought to give both Labour and the Conservatives a chance to make gains, as happened four years ago. Conversely the Liberal Democrats had one of their worst local elections ever in 2011, suffering a net loss of 748 councillors. They won’t do as badly this time, but only because they have fewer seats left to lose.

No local elections are scheduled for 7 May in Scotland, Wales or Northern Ireland, though there’s always a chance a few local by-elections may fall on this date. The same applies for London’s 32 borough councils and England’s 33 county councils, none of whom are currently scheduled to hold contests.

Six mayoral elections are also taking place on 7 May. They will be in:

• Bedford
• Copeland
• Leicester
• Mansfield
• Middlesbrough
• Torbay

These are being held using the supplementary vote system, which means that if no candidate wins more than half the vote, all runners other than the first two are eliminated and their alternative preferences distributed to the survivors.

Bedford will be worth watching to see if Dave Hodgson clings on and defies a possible nationwide collapse for the Lib Dems.

As with the council elections, the votes in these mayoral elections will all be counted on 8 May.

Some of the other contests that were scheduled for 7 May have been put back a year to avoid clashing with the general election. These are for:

• the Scottish parliament
• the national assembly of Wales
• the Northern Ireland assembly
• local councils in Northern Ireland

The people elected to these institutions in 2011 are getting to enjoy an extra year in office and will now face the voters in 2016 rather than 2015.

For the record, here is the full list of local elections taking place in England on 7 May:

Metropolitan councils

Barnsley, Birmingham, Bolton, Bradford, Bury, Calderdale, Coventry, Doncaster, Dudley, Gateshead, Kirklees, Knowsley, Leeds, Liverpool, Manchester, Newcastle-upon-Tyne, North Tyneside, Oldham, Rochdale, Rotherham, St Helens, Salford, Sandwell, Sefton, Sheffield, Solihull, South Tyneside, Stockport, Sunderland, Tameside, Trafford, Wakefield, Walsall, Wigan, Wirral, Wolverhampton.

Unitary authorities

Bath & North East Somerset, Bedford, Blackburn with Darwen, Blackpool, Bournemouth, Bracknell Forest, Brighton & Hove, Bristol Central, Bedfordshire, Cheshire, East Cheshire West & Chester, Darlington, Derby, East Riding of Yorkshire, Halton, Hartlepool, Herefordshire, Kingston-upon-Hull, Leicester, Luton, Medway, Middlesbrough, Milton Keynes, North East Lincolnshire, North Lincolnshire, North Somerset, Nottingham, Peterborough, Plymouth, Poole, Portsmouth, Reading, Redcar & Cleveland, Rutland, Slough, South Gloucestershire, Southampton, Southend-on-Sea, Stockton-on-Tees, Stoke-on-Trent, Swindon, Telford & Wrekin, Thurrock, Torbay,  Warrington, West Berkshire, Windsor & Maidenhead Royal, Wokingham, York.

Non-metropolitan districts

Allerdale, Amber Valley, Arun, Ashfield, Ashford, Aylesbury Vale, Babergh, Barrow-in-Furness, Basildon, Basingstoke & Deane, Bassetlaw, Blaby, Bolsover, Boston, Braintree, Breckland, Brentwood, Broadland, Bromsgrove, Broxbourne, Broxtowe, Burnley, Cambridge, Cannock Chase, Canterbury, Carlisle, Castle Point, Charnwood, Chelmsford, Cherwell, Chesterfield, Chichester, Chiltern, Chorley, Christchurch, Colchester, Copeland, Corby, Cotswold, Craven, Crawley, Dacorum, Dartford, Daventry, Derbyshire Dales, Dover, East Cambridgeshire, East Devon, East Dorset, East Hampshire, East Hertfordshire, East Lindsey, East Northamptonshire, East Staffordshire, Eastbourne, Eastleigh, Eden, Elmbridge, Epping Forest, Epsom & Ewell, Erewash, Exeter, Fenland, Forest Heath, Forest of Dean, Fylde, Gedling, Gloucester, Gravesham, Great Yarmouth, Guildford, Hambleton, Harborough, Harlow, Harrogate, Hart, Havant, Hertsmere, High Peak, Hinckley & Bosworth, Horsham, Huntingdonshire, Hyndburn, Ipswich, Kettering, King’s Lynn & West Norfolk, Lancaster, Lewes, Lichfield, Lincoln, Maidstone, Maldon, Malvern Hills, Mansfield, Melton, Mendip, Mid Devon, Mid Suffolk, Mid Sussex, Mole Valley, New Forest, Newark & Sherwood, Newcastle-under-Lyme, North Devon, North Dorset, North East Derbyshire, North Hertfordshire, North Kesteven, North Norfolk, North Warwickshire, North West Leicestershire, Northampton, Norwich, Oadby & Wigston, Pendle, Preston, Purbeck, Redditch, Reigate & Banstead, Ribble Valley, Richmondshire, Rochford, Rossendale, Rother, Rugby, Runnymede, Rushcliffe, Rushmoor, Ryedale, St Albans, St Edmundsbury, Scarborough, Sedgemoor, Selby, Sevenoaks, Shepway, South Bucks, South Cambridgeshire, South Derbyshire, South Hams, South Holland, South Kesteven, South Lakeland, South Norfolk, South Northamptonshire, South Oxfordshire, South Ribble, South Somerset, South Staffordshire, Spelthorne, Stafford, Staffordshire Moorlands, Stevenage, Stratford-on-Avon, Stroud, Suffolk Coastal, Surrey Heath, Swale, Tamworth, Tandridge, Taunton Deane, Teignbridge, Tendring, Test Valley, Tewkesbury, Thanet, Three Rivers, Tonbridge & Malling, Torridge, Tunbridge Wells, Uttlesford, Vale of White Horse, Warwick, Watford, Waveney, Waverley, Wealden, Wellingborough, Welwyn Hatfield, West Devon, West Dorset, West Lancashire, West Lindsey, West Oxfordshire, West Somerset, Weymouth & Portland, Winchester, Woking, Worcester, Worthing, Wychavon, Wycombe, Wyre, Wyre Forest.