constituency

noun

1. A district represented by one or more elected officials.

   “John was elected to parliament from the Bedford constituency.”

   “The row started over who will run for parliament in a wealthy rightwing constituency on the left bank in Paris, a safe seat for Sarkozy's ruling UMP. Dati is already a local mayor in the neighbourhood, a job felt to have been handed to her on a plate when she was a Sarkozy favourite. She has since fallen from grace, and when she left government she took a European parliament seat, considered a consolation prize.”

   “This follows the confirmation that Gilruth personally ordered the cancellation of engineering works in Fife last year, which is thought to have been the final straw for Gibb […]. Because her Fife constituency was materially affected by the cancellation, Scottish Conservative leader Douglas Ross, who raised Gibb's departure at First Minister's Questions on May 18, described the incident as a "clear-cut sackable offence".”

2. (collective)The voters within such a district.
3. (collective)The residents of such a district.
4. (collective)The voters of a candidate.
5. An interest group or fan base.