Suffolk became an incorporated town in 1808. In 1910, it incorporated as a city and separated from Nansemond County. However, it remained the seat of Nansemond County until 1972, when its former county became the independent city of Nansemond. In 1974, the independent cities of Suffolk and Nansemond merged under Suffolk’s name and charter.
Peanuts grown in the surrounding areas became a major industry for Suffolk. Notably, Planters’ Peanuts was established in Suffolk beginning in 1912. Suffolk was the ‘birthplace’ of Mr. Peanut, the mascot of Planters’ Peanuts. For many years, the call-letters of local AM radio station WLPM stood for World’s Largest Peanut Market.