The AA River Ridge District is a district in Region IV of the Virginia High School League which was formed for the 2003-2004 school year out of the AA Blue Ridge District in Region III. In the 2002-2003 school year, the student body of Group AAA Cave Spring High School in Roanoke County was split into two Group AA sized schools with the opening of Hidden Valley High School. These two new schools gave the Blue Ridge District eleven members that year except in football, where Cave Spring remained in AAA and Hidden Valley played a limited, solely non-district schedule. The district was separated for the 2003-2004 school year when both schools played a full schedule as AA members.
The assignment of schools to the two districts was not without controversy. The Roanoke County school board wanted all of its schools to be in the Blue Ridge District. However, other schools objected because this alignment would have created a competitive imbalance in football with the prospective River Ridge District having stronger teams than the Blue Ridge District. Eventually, a compromise sent the two southwest Roanoke County schools to the River Ridge and William Fleming High School of Roanoke, Virginia to the Blue Ridge.
In the 2007-2008 school year, the River Ridge District was moved into Region IV because many of the former Group AA member schools in the region had lost enrollment and dropped into Group A. The Blue Ridge District remained in Region III.
The River Ridge District will be preserved in the 2013-2014 VSHL reclassification. Patrick Henry High School in Roanoke and Carroll County High School in Hillsville will also join the district. The district will include schools from group classifications 3A to 6A. Each school will compete only against members of the same group classification in post-season play.
Patrick Henry will be in classification 6A. Carroll County, Pulaski County, and Salem will be in classification 4A. Blacksburg, Cave Spring, Christiansburg, and Hidden Valley will be in classification 3A.