The economic activities of Umuomaku include agriculture, trade and local industries. The community are into arable farming and livestock, wine, trade, basket and mat-making, cloth weaving, smelting and other crafts like wood carving.
During the pre-colonial era, economic activities were on a subsistence basis and so most products were basically for domestic consumption. This notwithstanding, farming was the main occupation of the people of Umuomaku.
Present day farming in Umuomaku has experienced serious setbacks as a result of the invasion by the herdsmen and their cattle. The invasion has led to clashes with local farmers with consequent lost of lives and rapes of women, and destruction of crops by the herdsmen. However, this rather ugly situation has become common occurrence in most parts of the farming communities of Southern Nigeria