Mills lives in in Robertsbridge, Sussex, and in an exclusive part of Hove, East Sussex. Mills continues to campaign for amputees, in addition to promoting the distribution of prostheses around the world, and has been involved with the development of the Heather Mills McCartney Cosmesis, which gives amputees in America the chance to wear a Dorset Orthopaedic cosmesis, without having to travel to the UK. Mills is also vice-president of the Limbless Association. In 2003, the Open University awarded her an honorary doctorate for her philanthropic work on behalf of amputees. In 2004, she received a "Children in Need" award from the annual International Charity Gala in Düsseldorf, and in the same year, the University of California, Irvine gave her their 2004 Human Security Award, and created the Heather Mills McCartney Fellowship in Human Security to support graduate students conducting research on pressing human security issues. She is a former Goodwill Ambassador for the United Nations