The population of Fremington, according to the census of 1801, was 875. This number increased gradually in the forty years to 1841, to 1,326 however the rate of increase slowed during the next 10 years and coinciding with the arrival of the railway fell from 1,351 in 1851 to 1,194 in 1901 and slightly lower in 1931. Population growth resumed after World War II and saw more than a doubling between 1961 and 2011, to 4,310 people. Data for 1801–1961 is available at Britain Through Time. The 2001 and 2011 Censuses give detailed information about the village.