The surname Isom originates from the village of Isham in Northamptonshire, England. It is derived from the Celtic river name Ise and the Old English word ham, meaning homestead. The spelling of the name evolved from Isham to Isom over time. Historically, the surname was associated with English families who resided in the parish of Isham. The name's popularity has fluctuated over the years, with a significant increase in the United States between 1880 and 2014. The surname Isom is important because it reflects the historical migration and settlement patterns of English families in North America.
