Prior to the creation of North Hertfordshire in 1974, Wymondley was part of Hitchin Rural District.

[1] Wymondley was once the location of a dissenting academy for the education of future nonconformist ministers.

[3] The electrical grid substation, named after the village, is to the south-west, over the A602, in St Ippolyts.

Wymondley Parish is located within the local government district of North Hertfordshire.

Wymondley is located within the Hertfordshire County Council Division of Knebworth and Codicote and is represented by Cllr Richard Thake (Conservative).