P.E.O. International's headquarters are located at 3700 Grand Avenue, Des Moines, Iowa.
These headquarters, known as the P.E.O. Executive Office, also include the Centennial Conference Center and are home to the offices for the staff members of the organization, historic archives and meeting space for local chapters.
The P.E.O. Executive Office is open Monday through Friday, 7:30 a.m. - 4 p.m.