Joe Heathcote, who passed away aged 93, served on the county council for more than 50 years in local government, as both a councillor and as clerk to Somercotes Parish Council.
He represented the old Alfreton No.2 Division, now known as Somercotes Division, from 1964 to 1993.
Mr Heathcote was a deputy leader from 1981-1990 and was Derbyshire County Council Chairman from 1991-1993.
The council has paid tribute to him , ahead of the funeral this week.
Councillor Paul Smith, deputy leader of the county council, said: “To serve for over 50 years in local government is an impressive achievement which few will match.
“Joe’s tireless work was of huge benefit to the local community.
“When I was elected on to Derbyshire County Council in 1996, Joe had already stepped down from his role with the authority – but he was still around to offer support, advice and guidance.
“Joe knew the role like the back of his hand and it was great to have someone of his vast experience to be able to call on.
“It was fitting that he was Chairman of Derbyshire County Council for his final two years on the authority.”
Mr Heathcote leaves daughters, Mavis and Susan, and a son, Kevin.
A funeral service will take place at 1pm on Wednesday 10 February at Somercotes Parish Church followed by refreshments at Somercotes Village Hall.
For media enquiries please contact the press office on 01629 538205.