Jodie was a showjumper as a child and attended St Michael's School, Burton Park, Petworth, West Sussex. Kidd has two siblings. Her elder sister, Jemma Kidd (born 1974), married Arthur Wellesley, Earl of Mornington, son of the current Duke of Wellington, in June 2005. Kidd's brother, Jack Kidd (born 1973) is a polo player. Kidd also has a half brother, the entrepreneur Nick D'Arcy Whiting (born 1962) and a half sister Debbie Parris (born 1964).
Following a year long romance and engagement, Kidd married Internet entrepreneur Aidan Butler on 10 September 2005 at St Peter's Church, Twineham, West Sussex. The couple split up after 18 months of marriage.