Diss is an English market community and electoral ward in the East Anglian region of Norfolk, near the boundary with Suffolk. It had a population of 7,572 in 2011. Diss train station is on the Great Eastern Main Line from London to Norwich. The town hinges on the valley of the River Waveney, round a plain covering 6 acres (2.4 ha) as well as as much as 18 feet (5.5 m) deep, although there is one more 51 feet (16 m) of mud. The community takes its name from dic an Anglo-Saxon acceptation either ditch or embankment. Diss has a number of historical buildings, consisting of a very early 14th-century parish church as well as an 1850s corn exchange still in operation. Four miles east of Diss is the 100th Bomb Group Memorial Museum at the former RAF Thorpe Abbotts landing strip. In March 2006, Diss ended up being the third community in the UK to join Cittaslow, a worldwide organisation promoting the principle of "Slow Towns". Nonetheless, it has actually because left this campaign.