2010s Elections in the 2000s Elections in the 1990s Elections in the 1980s Elections in the 1970s Graphical representation See also List of parliamentary constituencies in Essex Notes References External links nomis Constituency Profile for Brentwood and Ongar — presenting data from the ONS annual population survey and other official statistics. Parliamentary constituencies in Essex Constituencies of the Parliament of the United Kingdom established in 1974 Borough of Brentwood Brentwood (Essex town)