The Community Assembly of King's Lynn is located in a port and market town in the borough of King's Lynn and West Norfolk in the county of Norfolk in the British Isles. Until 1537, King's Lynn was known as Bishop's Lynn and colloquially as Lynn. It lies north-east of Peterborough, north-north-east of Cambridge, west of Norwich, and about 5 miles inland from The Wash Estuary.

The name Lynn may signify a 'body of water' near the town. The Welsh word llyn means a lake ; but the name is plausibly of Anglo-Saxon origin, from lean meaning 'a tenure in fee or farm'. The 1086 Domesday Book records it as Lun and Lenn , and ascribes it to the Bishop of Elmham and the Archbishop of Canterbury. 

Lynn originated on a site south of where the River Great Ouse now flows into the Wash. Development began in the early 10th century, but the place was not recorded until the early 11th century. Until the early 13th century, the Great Ouse emptied via the Wellstream at Wisbech. After its redirection, King's Lynn and its port gained significance and prosperity. During the 14th century, King's Lynn ranked as England's most important port. It was seen to be as vital to England in the Middle Ages.

The draining of the Fens began in the mid–17th century, transforming the land into productive farmland and enabling large quantities of produce to supply London's growing market. During this period, King's Lynn remained a major fishing port, and Greenland Fishery House, built on Bridge Street in 1605, stands as a testament to that trade.

Today, King's Lynn attracts visitors to its historic centre. Within the town and across the nearby Fenland are some of the finest historic churches in Britain, built in a period when King's Lynn and its hinterland were wealthy from trade and wool.