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The bulk of the constituency was formed from the majority of the Hertford constituency which was significantly revised. A part of the Rural District of Braughing was transferred from Hitchin.
The Urban District of Ware was transferred to the new constituency of Hertford and Stevenage.
On abolition, southern parts (consisting the majority of the electorate), largely comprising the former Urban Districts of Cheshunt and Hoddesdon (combined to form the District of Broxbourne under the local government reorganisation of 1974) formed the bulk of the new borough constituency of Broxbourne. With the exception of some rural parts in the north-west of the constituency, which were included in the new constituency of Stevenage, the remainder of the seat (including Bishop's Stortford and Sawbridgeworth) was amalgamated with the Hertford and Ware part of Hertford and Stevenage to form the new Hertford and Stortford constituency.
^ S., Craig, Fred W. (1972). Boundaries of parliamentary constituencies 1885-1972;. Chichester: Political Reference Publications. ISBN0900178094. OCLC539011.{{cite book}}: CS1 maint: multiple names: authors list (link)