as of the census of 2000, there were 547 people, 199 homes and 125 families living in accomac. the population density was 1,322.1 people per square mile (515.1/km²). in race, there 71.12% white people living there, 24.68% african-american, 2.56% asian, 0.91% from other races, and 0.73% from two or more races. [