Dacorum Borough Council in Hertfordshire, England is elected every four years. Since the last boundary changes in 2007, 51 councillors have been elected from 25 wards.
Since the first election to the council in 1973 political control of the council has been held by the following parties:
Dacorum District Council election, 1973
Dacorum District Council election, 1976
Dacorum District Council election, 1979 (New ward boundaries)
Dacorum District Council election, 1983
Dacorum Borough Council election, 1987 (Borough boundary changes took place but the number of seats remained the same)
Dacorum Borough Council election, 1991 (Borough boundary changes took place but the number of seats remained the same)
Dacorum Borough Council election, 1995
Dacorum Borough Council election, 1999 (New ward boundaries reduced the number of seats by 6)
Dacorum Borough Council election, 2003
Dacorum Borough Council election, 2007 (New ward boundaries reduced the number of seats by 1)
Dacorum Borough Council election, 2011
Dacorum Borough Council election, 2015
Vacancy caused by resignation of Conservative incumbent Stephen Holmes.
Vacancy caused by resignation of Labour incumbent. Percentage changes are since May 2011
