Constituency (noun)

1. A group of voters in a particular area who elect a representative to a legislative body.
2. A group of people or organizations that a representative or organization represents or serves.

Origin:

From the latin constituere, meaning "to establish, set up", from con- meaning "with" + statuere meaning "to set up, establish".

Examples:

1. The senator's constituency was a large urban area.
2. The constituency of the organization was the low-income families.
3. The constituency of the candidate was the rural area.
4. He represented his constituency in the parliament.
5. The constituency of the school was diverse.