Although there are no polls in Scotland, Wales or Northern Ireland, there is plenty of action in England - with seats on about 150 councils up for grabs. These are a mixture of metropolitan, unitary, borough and district councils. In some, all the seats are up for grabs while in others a third are being contested.
In 2014, the last time most of these seats were contested, Labour did well - gaining control of six councils and adding more than 300 councillors to their ranks. In contrast, the Conservatives lost 236 seats and relinquished control of 11 councils. This means that Labour has more councils and seats to defend this time around.
Labour is defending about 75 local authorities, including Manchester City Council, where it holds 93 out of the 94 seats. The only other representative is former Lib Dem MP John Leech, who represents Didsbury West.
Other Labour strongholds being contested include Liverpool, Sandwell, Sunderland and Birmingham, where the Conservatives will be making the most of a recent bin strike.
A better indicator of Jeremy Corbyn's prospects at a general election may come in the Midlands, the east and the south, where Labour will need to pick up seats if he is to get into Downing Street.
Councils on which the Conservatives are the largest party and which may possibly be within their grasp include Basildon, Colchester, Pendle and Portsmouth. Other results to watch out for include Peterborough, where the Conservatives are seeking to regain the control they lost following a by-election held on the same day as the general election last year.
The Liberal Democrats are defending six councils, including their Eastleigh and Cheltenham strongholds, and will be hoping to improve on their 2014 showing - at a time when they had spent four years in government with the Tories.
The Green Party says it is contesting 2,200 seats this time, more than half of the total. These include defending seats in Norwich and Solihull, where it is the official opposition party.
As for UKIP, their prospects could not be more different than four years ago, when they were riding high and about to win the largest share of the vote in the European elections.
