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Below is a list of former parliamentary constituencies in Essex and details of them. These details include their modern equivalent, date of existence and any other relevant information.

Former Seats 1983-1997

Colchester North

• Modern Equivalent and successor: Colchester and North Essex
• Predecessor: Colchester
• Elections fought: 1983, 1987, 1992
• Type of seat: Conservative safe
• Member(s) of Parliament:
  1. Antony Buck (1983 - 1992), Conservative
  2. Bernard Jenkin (1992 - 1997), Conservative

Colchester South and Maldon

• Modern Equivalent and successor: Maldon and East Chelmsford
• Predecessor: Maldon
• Elections fought: 1983, 1987, 1992
• Type of seat: Conservative safe
• Member(s) of Parliament: John Wakeham (1983 - 1997), Conservative

Rochford

• Modern Equivalent and successor: Rayleigh
• Predecessor: South East Essex
• Elections fought: 1983, 1987, 1992
• Type of seat: Conservative safe
• Member(s) of Parliament: Michael Clark (1983 - 1997), Conservative

Southend East

• Modern Equivalent and successor: Rochford and Southend East
• Elections fought: 1918 to 1992
• Type of seat: Conservative safe
• Member(s) of Parliament: Henry Channon (1983 - 1997), Conservative

Former Seats 1955-1974

Billericay

• Modern Equivalent: Billericay and Brentwood and Ongar
• Successor: Brentwood and Ongar
• Elections fought: 1950 to 1970
• Type of seat: Conservative safe (1950s) and marginal (1960s and 1970s)
• Member(s) of Parliament:
  1. Richard Body (1955 - 1959), Conservative
  2. Edward Gardner (1959 - 1966), Conservative
  3. Eric Moonman (1966 - 1970), Labour
  4. Robert McCrindle (1970 - 1974), Conservative

Chigwell

• Modern Equivalent and successor: Epping Forest
• Elections fought: 1955 to 1970
• Type of seat: Conservative
• Member(s) of Parliament: John Biggs-Davison (1955 - 1974), Conservative

Epping

• Modern Equivalent and successor: Epping Forest and Harlow
• Elections fought: 1885 to 1970
• Type of seat: Conservative marginal ( bellwether constituency)
• Member(s) of Parliament:
  1. Graeme Bell Finlay (1955 - 1964), Conservative
  2. Stanley Newens (1964 - 1970), Labour
  3. Norman Tebbit (1970 - 1974), Conservative