con·stit·u·en·cy 
(kən-stĭch-ən-sē)
(kən-stĭch-ən-sē)n. pl. con·stit·u·en·cies
1.
a. The body of voters or the residents of a district represented by an elected legislator or official.
b. The district so represented.
2.
a. A group of supporters or patrons.
b. A group served by an organization or institution; a clientele: The magazine changed its format to appeal to a broader constituency.