The Dengie 100 has a long tradition in holding markets and fairs . A survey in 1575 recorded markets in 6 locations within the district although they all appear to have ceased between 1800 and 1863.
 

Burnham on Crouch was granted a charter for its market in 1253 and a further market was approved in 1348. The markets were held annually on 25 April and a toy market was held on 21 and 22 September each year.

A market was recorded in Southminster in 1218, which is the earliest recorded market in the Dengie 100. The tradition of Southminster was further upheld when a livestock and general market was established in 1902 to marked the fine local produce of the fertile region . Unfortunately the market closed in 1937 leaving only the auction house run by E J Gale in Station Road.

Latchingdon, Steeple and Ostend are all recorded as having general markets whilst Althorne held a toy market annually on 5 June.
 

Although no street markets exist within the area today there are regular farmers markets at Burnham Carnival Hall and Burnham Town Show run markets on the Quay during the Autumn bank Holiday weekend.

The tradition of fairs continues with large and popular fairs being held as part of Southminster Flower Show in mid July and Burnham Carnival in late September.