About what percentage of employees of executive departments do not work in washington, d. c.

90 %

Explanation:

This high number occurs  The executive department was established to directly enforce the regulations toward the whole nation. Because of this, it is important for workers from executive departments to be stationed on every territories in united states.

For example, The department of Labor is one of the department of the executive branch. The are established to ensure the safety and fairness of labor use in the country. To do their jobs, it is important for them to carried out inspections to work site all across the nations. There is no way they can do this if they are located only in Washington D.C.

the above statement/question is (true);