Most settlements, people and families in the Iron Age were still largely dependent on farming. Animal and plant remains from sites frequently show a mixed economy, including animal remains of sheep, pigs, cows, and more occasionally horses and dogs, and plant remains indicating the cultivation of different types of cereal crop. However, at the Airport Catering Site at Stansted, the lack of crop processing remains suggest that the village was using grain from elsewhere and concentrating on livestock.
Iron remained rare until quite late in the period, but there is evidence for small scale metal working on settlement sites. At the end of the Iron Age salt production took a form which began to leave remains known as “Red Hills” along the Essex coast. The industry flourished and developed during the early Roman period.