To boost the school's population, the attendance boundary between Washington-Liberty and Yorktown in the northeastern portion of the county was redrawn in 1983.

Portions of the Donaldson Run, Cherrydale, Woodmont, Dover Crystal, and Old Dominion neighborhoods were transferred into a larger Yorktown district.

In the 1990s its boundaries expanded once again to serve the communities of Rosslyn, Courthouse, Clarendon, Westover, Halls Hill/Highview Park, and portions of Dominion Hills.

On May 8, 2006, the Arlington County School Board approved a preliminary design to rebuild the building.

[citation needed] As of March 7, 2018, plans have been approved to go ahead with another renovation to increase the buildings capacity to 2,189 seats.

[citation needed] Yorktown's winter guard has won gold medals in the Atlantic Indoor Association Championships in 2009 and 2010.

Yorktown has a public partnership with Arlington County to use the athletic facilities of Greenbrier Park for softball, baseball, and track & field events.

[18] Starting in 2002, the Arlington County School Board intended to spend over $700,000 on the installation and maintenance of new FieldTurf in various athletic fields and stadiums.

In 2006, Yorktown's outdoor stadium was the last of the three Arlington high schools to undergo installation.

[19] The Yorktown High School football team's head coach was Bruce Hanson from 1984 to 2024.

[20] However, in December 2024, Hanson's replacement - Alec Hicks, who was assistant coach for 20 seasons - was announced.