ALFRETON, urban district, Derbyshire, England, 14m. N. by E. of Derby, on the L.M.S. railway. Population (193 ) 21,232. It lies above a small tributary of the Derwent. The church of St. Martin is Early English and later. The neighbourhood abounds in ironworks, collieries, quarries and potteries, and is thickly popu lated. To the north-east of Alfreton are South Normanton (popu lation 6,996 in 192I), Blackwell (5,o73) and Tibshelf (4o53) to the north Shirland, to the south Ironville, and other busy industrial villages. The foundation of Alfreton is traditionally ascribed to King Alfred.