Members are elected from single-member districts, all apportioned to roughly equal populations after each decennial Census.

The Delaware General Assembly was one of the thirteen legislatures that participated in the American War of Independence.

Also significant was its repeated refusal to legislate the end of slavery or voting rights for women, requiring federal law to enforce those changes.

After 1898, the total membership was increased to 52 and they were elected from districts, mostly corresponding to the geographical boundaries of hundreds within the counties.

After the Supreme Court decision in Reynolds v. Sims in 1965, the General Assembly was forced to redistrict so that all members of both houses were elected from districts of equal population.