A surname derived from the Spanish word "clase" meaning "class" or "category".
In the 1881 census there were 34 people recorded with the Clase surname, ranking it #28,837 among surnames in the records. By 2016, the modern count was 4, ranked #38,419, down from #28,837 in 1881.
The strongest historical links point to Paignton, Lanchester (Collierley, Kyo, Billingside, Medomsley, Ebchchester, Benfieldside, Heelyfield, Conside and Dartmorth St Petrox, Dartmouth St Saviour, Townstall, Ashprington, Halwell, Blackawton, Stoke Flemin. In the modern distribution records, the strongest local clusters include No data.
Across the surname records, the highest recorded count for Clase is 110 in 1861. Compared with 1881, the name has fallen by 88.2%.