There were huge family gatherings and parties in towns like Burgess Hill, Haywards Heath and Lindfield.
Here we take a look at the various events held in the district over the four-day celebration.
Here are some links to larger galleries of individual events in the area: Skate Fest in Burgess Hill, Party in the Park in Burgess Hill, The Platinum Jubilee celebration at The Orchards in Haywards Heath, the picnic at Victoria Park in Haywards Heath, Lindfield Village Day, Burgess Hill's beacon lighting, Wowzer Wednesday and Arts Day, Wheels Through the Years in Burgess Hill, Horse Racing on the Green in Horsted Keynes and Hapstead Hall Market, Ardingly.
37. Plumpton
Plumpton Parish Council and Plumpton Village Society set out a programme for their Jubilee weekend, with many local clubs and societies taking part. Photo: Plumpton Village Society
38. Plumpton
Plumpton's Jubilee weekend ended with the Big Event at Plumpton Racecourse. Photo: Plumpton Village Society
39. Plumpton
All Saints Plumpton Green held a service of thanksgiving with Vice Lord Lieutenant Sara Stoner DL representing the Queen, the High Sherriff of East Sussex and the Archdeacon of Brighton and Lewes in attendance. Photo: Plumpton Village Society
40. Plumpton
Plumpton residents walked up to Mount Harry to watch the lighting of the Beacon by Hamsey and East Chiltington Parish Councils. Photo: Plumpton Village Society